6x-12=2x-6

Also, how do you check your answer?

6x-12 = 2x-6

get like terms on the same side by adding/subtracting.

6x - 12 = 2x - 6

+ 12, - 2x on both sides

6x - 2x = - 6 + 12

4x = 6

divide all by 4

x = 1.5

to check your answer, plug in 1.5 for x and see if they are equal to one another.

6 (1.5) - 12 = - 3

2 (1.5) - 6 = - 3