# Thread: 7x-6x = 0 ?

1. ## 7x-6x = 0 ?

13x -2(3x -4) = 6(x +2) -4 =
13x -6x +8 = 6x +12 -4 =
7x +8 = 6x +8 =
7x +8 -8 = 6x +8 -8 =
7x - 6x = 6x -6x =x
x or 0 ?

2. Originally Posted by Leona_Marie
13x -2(3x -4) = 6(x +2) -4 =
13x -6x +8 = 6x +12 -4 =
7x +8 = 6x +8 =
7x +8 -8 = 6x +8 -8 =
7x - 6x = 6x -6x =x
x or 0 ?
x = 0 is the solution to the equation.

You can see this by plugging it into the original equation:

$13x - 2(3x-4) = 6(x+2)-4$

$13(0) - 2(3(0)-4) = 6(0+2)-4$

$- 2(-4) = 6(2)-4$

$8 = 12-4$

$8 = 8$

Yey.

3. can you explain it in a way I can understand it mush what happend to 13x theres only 12x on the board 13x -12x is x help.