00:01
So we need to solve the equation 4 times 2x plus 7 minus 6 times 4x minus 8 is equal to 12x plus 3 times 4x minus 9.
00:18
So first we're going to start with distributing.
00:21
So we'll distribute the 4 to the 2x and the 7.
00:25
We will distribute the negative 6x.
00:28
So careful here because there's a minus sign in front of the 6.
00:32
So this is 6 is negative, both of these pieces, and then this three, both of these pieces.
00:41
So 8x plus 28 minus 24x.
00:56
And then remember, this is a negative times the negative, so it's a positive 48.
01:06
12x is hanging out.
01:10
3 times 4 is 12, 3 times negative 9.
01:14
Is negative 27.
01:20
So from here we just need to clean it up.
01:27
So 8x and negative 20, 4x are like terms.
01:34
28 and 48 are like terms, and then also the 12 and 12...