00:01
We're being asked to solve the given equation for x.
00:02
Well, i see we have a fraction here.
00:04
So to get rid of it, we're going to multiply both sides of our equation by our common denominator, which is a -minus 1.
00:13
So on the left -hand side, the a -minus 1 is canceled.
00:16
So we have x equals.
00:17
Well, now we're going to distribute.
00:20
Well, a -x times a is a -squared x.
00:23
A -x times negative 1 is negative a -x.
00:26
3 times a is positive 3 -a, and 3 times negative 1 is negative 3.
00:32
So now we have to get x by itself.
00:35
So to do that, i'm going to do two things.
00:37
I'm going to start by subtracting a squared x from both sides of our equation, because then those two terms cancel...