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Johns Hopkins University

University of California, Berkeley

Numerade Educator

University of Michigan - Ann Arbor

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we're gonna look at X equals negative B over two A. And we're gonna solve for a now because A is in the denominator I want to rewrite. The first step is I'm gonna rewrite this equation to where I no longer have a fraction. So I'm going to do that by multiplying both sides by the denominator. And I know the A is in the denominator, and that's okay. We just want to remove it as a fraction. So we're gonna multiply both sides by two A. So that means on the left side. Now I have to a X equals the denominator is going to cancel out on the right and leave me with just negative b. So now let's look at the left side. Now that I've done that, I can see on the left side what I really have is two times a times X equals negative bay. So that means that the two and the X are both being multiplied by the A. So in order to move on, we need to do the opposite of multiplication. And the opposite of multiplication is always going to be division. So we're going to divide both sides by two X So that's gonna cancel them out on the left side and leave me with just a equals negative B over to X.

Liberty University