00:01
So in this problem, we're going to solve a two -step equation, and we're going to solve for the variable p.
00:06
And we're actually going to use two properties, the subtraction property of equality and the division property of equality.
00:13
So in this case, we're going to solve, first of all, for this negative 3, this minus 3 p here.
00:19
We want to get rid of this 9.
00:21
And right now it's a positive 9.
00:23
There's a little positive on the front here.
00:24
We don't typically write that positive, but it's hiding there.
00:27
And to get rid of it, we have to do the opposite in minus 9.
00:30
So positive, so we have to minus it.
00:33
That's going to cancel that out.
00:35
9 minus 9 to 0.
00:36
They're going to cancel it.
00:36
And i'm going to do this to the other side as well because of the subtraction property of equality to keep the equation true...