It seems to me there is a much easier way, unless I'm mistaken. Subtract 1 from each side: n-1=(L-a)÷d. Multiply each side by "d": d(n-1)=L-a. Add "a" to each side: d(n-1)+a=L. Switch equation around answer is L=d(n-1)+a. Please let me know if this is valid. Thanks.
@juergenilse3259
Жыл бұрын
It is valid andit is also my preferred way to solve this equation.
@kevinconiston2270
Жыл бұрын
Nothing wrong with that 👍
@harrymatabal8448
10 ай бұрын
Mr crunch your answer is perfectly correct
@GoBlesstheSky
Жыл бұрын
Subtract 1 from both sides, multiply both sides by d, add a to both sides. d(n-1)+a = L.. of course there is a more complicated way, but why?
@gregwessels7205
Жыл бұрын
The explanation was much more difficult than my solution.
@L-8
Жыл бұрын
n = (L - a)/d + 1 (subtract 1 from both sides) n - 1 = (L - a)/d (multiply both sides by d) (n - 1)d = L - a (add a to both sides) (n - 1)d + a = L L = (n - 1)d + a Easy!
@markotto4281
Жыл бұрын
Much easier.
@ndailorw5079
9 ай бұрын
@L-8 But what you seem to overlook or fail to see is that he’s not teaching so much to those who like yourself are at your level. He’s teaching to those who are somewhat new or rusty to this subject. What happens to the person who is new to this stuff and doesn’t know as much as you know about it? He’s mainly teaching to them. That’s his aim and goal, here; that’s his point here! Do you really think and believe that he couldn’t do this problem as easy and perhaps as fast as you? Could he refine his approach and method a little more? Of course! I myself see a lot of fat in his method and approach. But for those he’s mainly trying to reach he’s doing no harm to them, fundamentally. And the more versed they become, the more they’ll learn and see that there’s other approaches to skinning this cat. But it’s crucial and necessary at this point in the game that they’re taught by the method used here by the instructor. By your approach, a new student would learn the how, but would not learn and know the why! I’m pretty sure you yourself first learned the why as you went along learning the how….? In other words, being at your level, he’s not talking to you! Sort of speak…
@mrsmiley631
Жыл бұрын
Subtract 1 from each side. Multiply each side by d. Add a to both sides.
@jerry2357
11 ай бұрын
n=(L-a)/d+1 move 1 to other side (n-1)=(L-a)/d multiply both sides by d d(n-1)=L-a move a to other side d(n-1)+a=L EDIT: after watching the video, I'm just wondering why you didn't move the 1 to the other side of the equation at the start, because it avoids having to play with the fraction on the r.h.s. of the equation, and also the factorising by d is done automatically the way I did it.
@Kleermaker1000
2 ай бұрын
First thing I thought was: move the 1 to the other side, that makes things much more 'organized' and clear. Not difficult to see that at first glance.
@juergenilse3259
Жыл бұрын
It is easy,if you know how to do transformations on equations ... After the following transformations, you get the result: 1.) -1 2.) *d 3.) +a Then you got the equation: a+d*(n-1)=L So L is a+d*(n-1) here. Why do you first write 1 as d/dto add the 2 fractions? If you first bring the 1 to the other side (by subtractig 1 on both sides), you do not need to do that.
@harrymatabal8448
8 ай бұрын
nd-d+a =L. I am 98% sure. But you have done some research to assume that 98% will struggle
@conniebartley4226
Жыл бұрын
I’m a senior citizen completing my bachelor’s degree in environmental health and safety with a minor in biology. I already took college algebra but I didn’t get the grade I needed. I’m Phi Theta Kappa at a community college. Your explanations are incredibly helpful. I’m taking College algebra and Trigonometry to satisfy the math requirements. I live on social security so I don’t have a lot of money but I would love for you to help me.
@devonwilson5776
Жыл бұрын
Greetings. Good luck on your studies. Be blessed.
@conniebartley4226
Жыл бұрын
I’m in university in Maryland. Some of the classes are pretty ugly but all my credits were accepted. I’ve always been a science major so algebra and trigonometry are ugly classes for me. But I’m determined to learn and use the mathematics.
@davidzwicker5662
Жыл бұрын
Hey genius, You’re out of your mind if you think with all your distractions and multiple examples that don’t concern the equation are making this easy to learn.
@russelllomando8460
Жыл бұрын
got it, thanks
@SchwarzenVolk
Жыл бұрын
Actual information 10% of video length. Remaining 90% commercials promoting self. Unsubscribed, time is precious.
@lory5204
Жыл бұрын
.??!!
@devonwilson5776
Жыл бұрын
Greetings. The answer is L= a + d(N-1). This is how we determine the value for L. First, we multiply the entire equation by d to get Nd = (L-a) +d, and Nd-d = L-a. That gives a + d(N-1)= L.
@ndailorw5079
9 ай бұрын
@devonwilson5776 Well… in a more general sense, yeah. That is, again, yeah, in the most general sense the final answer shows what L “equals”, and the equation, therefore, or the statement, is true. But we’re not evaluating this equation so as to “determine” a “value” for L. When we do that it’s called evaluation! There’s no final substitution of a numerical value into the other variables here so as to allow us to “determine” the “value” of L. Here, we’re simply isolating L to one side of the equation. In other words, our final answer here is L = d(n - 1) + a, but, what’s the value of L….? And at that final point, it’s impossible to “determine” the “value” of L without substituting numerical values for the variables d, n, and a! So here, all we’ve done is “solve” for L by isolating it to one side of the equation, but we haven’t “determined” its numerical “value”….. all we’ve “determined,” for now, at this final point, for now, is that the “value” of L is the same as the “value” of the expression on the opposite side of the equation. But that “determines” nothing nor tells us anything at all about the specific or the particular or the exact “numerical value” of L.
@Kleermaker1000
2 ай бұрын
@@ndailorw5079 The question should be: L is equal to what?
@ndailorw5079
2 ай бұрын
@@Kleermaker1000 Given the equation’s final form, L = d(n - 1) + a, and in asking what you ask regarding it, you’re asking, as does the poster above to whom I replied, what’s the numerical value of L. But both statements are incorrect, simply because the numerical value of L can never be determined until we give numerical values to the variables d, n, and a on the other side of the equation, or the numerical values for them have been determined and then given to us prior to the question. So that it’s meaningless to ask the question, “L is equal to what?,” or, to say as the poster says above, “This is how we determine the value of L.” The poster’s correct in saying as much as they say. But they’re incomplete in saying as much in not saying quite enough. That is, they should’ve instead phrased their statement somewhat like this, “now having the equation in its final form we’re in a position to determine the value of L, but only if we already know the numerical values of d, n, and a, and then substitute those values into those variables corresponding to them.” Short of saying as much as that, with more or less brevity, or otherwise, the best the above poster should’ve said would’ve been, “we have now “solved” for L.” Period! Long long story shorter, the answer to your question “L is equal to what? is L = d(n - 1) + a. Period! But what you’re really trying to ask and want to know is when d = 10, and n = 11, and a = 3 what does L then equal? Now we can “determine” the numerical value of L because the variables themselves have been assigned numerical values to plug into them to enable us to “determine” the numerical value of L! So, L = 10(11 - 1) + 3 >> L = 10(10) + 3 = >> L = 103! So L equals 103! So the poster’s incorrect in saying we can “determine” L merely and only by having the equation in its final form, and without knowing the numerical values of the 3 variables on the other side of the equation. All they did was “solve” the equation for L, they didn’t “determine” the “value” of L! Pardon the long long wind…?
@Kleermaker1000
2 ай бұрын
@@ndailorw5079 In my question you could already read the answer: that L is equal to 'something' and not to some number. In this case that 'something' is of course d(n - 1) + a.
@ndailorw5079
2 ай бұрын
@@Kleermaker1000 Exactly. And putting that way I now see your point. Dummy that I am… lol! And a much shorter answer than my long reply! lol! But I thought you were literally asking a value for L in reply to my reply to the poster above. Which is why the long winded answer instead of the simpler and incomparably shorter answer you now give, and gave in the first place. My apologies. I was simply trying to say to the poster above “this is “not” how we “determine” L because that can’t be done without having numerical values for the 3 variables on the other side of the equation, and that we’ve only “solved” for L, nothing more.” Which is all you were saying to me in reply to that post. But as I said, I missed your point in that whole process. Great job!
@brocksprogramming
7 ай бұрын
It helped❤🎉
@Dbaby52
6 ай бұрын
dn=l-a+d dn-d=l-a d(n-1)+a=l
@paulmoon4734
6 ай бұрын
Take the rest of the year off if you got this correct. I did get it correct. I'm tipping my boss won't go with it but I love your enthusiasm.
@panlomito
9 ай бұрын
( L - a ) . d / d = d(n - 1) so L = d(n-1) - a
@chrisw4562
Жыл бұрын
Not sure I understand this channel. It almost seems to want to find the most complicated way to get the answer. Subtract 1, multiply by d, add a. Done.
@Real_LiamOBryan
Жыл бұрын
What happens if you multiply by d first, and why should you or should you not?
@L-8
Жыл бұрын
@@Real_LiamOBryan n = (L - a)/d + 1 Because not the whole right side is being divided by "d". "L - a" is, but the "+ 1" isn't, so first you have to deal with it by subtracting it.
@Real_LiamOBryan
Жыл бұрын
@@L-8 If someone did that first, then would they come out with a correct answer?
@L-8
Жыл бұрын
@@Real_LiamOBryan There isn't a correct way of doing incorrect things, so it depends...
@Real_LiamOBryan
Жыл бұрын
@@L-8 Does the way of doing things in the video avoid the error?
@rodfulford4306
Жыл бұрын
L=ND+A-D or D(N-1)+A
@harrymatabal8448
10 ай бұрын
Nd-d+a
@harrymatabal8448
7 ай бұрын
Mr crunch. Your answer is valid. How long did it take u
@argonwheatbelly637
Жыл бұрын
L=nd-d+a in about seven seconds.
@iamhe999
Жыл бұрын
this one was way to fast for my brain
@giannaleoci2328
Жыл бұрын
nd=L-a+d L=(n-1)d+a
@mr.mxyzptlks8391
3 ай бұрын
My usual gripe, what grade is this aimed at? Solutions are in the comments already. Please prep your students for unusual things as well. Most simplistically, rephrase this as lambda =alpha+delta(eta-1). Same thing, just using Greek letters. Confused me in the beginning, I guess around 6th grade. Understanding variables vs numbers is, I think, the most important conceptual thing going from arithmetic to algebra, in middle school. Anyways, still a good instructional vid, keep going. Also not sure why you went into Physics. I don’t think it is relevant, until 7th grade.
@scmtuk3662
Жыл бұрын
n = (L - a)/d + 1 n - 1 = (L - a)/d d(n - 1) = L - a L = d(n - 1) + a _or_ a + d(n - 1) There is no way that "90% will struggle" with that. More like... 30%?
@L-8
Жыл бұрын
It's just dumb clickbait. % of who? 0% of people who don't know algebra can do it, but 100% of people who know algebra up to this level can do it (because it's not a confusing problem).
@bobwineland9936
11 ай бұрын
L=d(n-1)+a
@stevenjohnson1143
Жыл бұрын
L=a+d(n+1)
@danielmadden9691
7 ай бұрын
L=ND+a-1
@johnnyllooddte3415
Жыл бұрын
L = (n-1)d +a
@bobcornwell403
Жыл бұрын
I came up with: L = (nd) + a - d.
@Karen_DNP
Жыл бұрын
n = L - a/ d + 1 n = (L-a)/d + 1 .. L = ? n x d = (L-a) + 1 n(d)+a or n(d+a) = L + 1 n(d)+ a - 1 = L n/0 x d(1st step) + a(2nd step) - 1(3rd step) = L WTF!! L = a + d(n-1)😳 ?????????????????? 😤
@danielmadden9691
7 ай бұрын
I think I slipped up on this one
@oldschoollew
Жыл бұрын
for this i missed multiplying 1 by d .... and then edit later then I noticed funny enough 2nd look
@olenfersoi8887
10 ай бұрын
What you should NOT be doing is giving someone 150% for a right answer. Someone can be partially correct, but not MORE that totally correct.
@vwr32jeep
6 ай бұрын
I struggle to devote 20+ minutes to each math problem.
@DayanandPandey-ns5qc
11 ай бұрын
Ans. na
@DayanandPandey-ns5qc
11 ай бұрын
na is wrong.
@DayanandPandey-ns5qc
11 ай бұрын
Ans. d(n-1)+a L ka man
@pibbles-a-plenty1105
11 ай бұрын
Zzzzzzzzzzzzzzzzz....... Way too wordy. ZZzzzzzzzzzzzzzzzzz...........
@iamhe999
Жыл бұрын
When Russia invaded the Ukraine, The Ukraine started handing out machine guns to its citizens..
@cpfglobalagronomics6162
Жыл бұрын
Way more difficult than it needs to be. See @L-8, my solution.
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