Respuesta :

Simplifying

12x + -8x = 12

Combine like terms: 12x + -8x = 4x

4x = 12

Solving

4x = 12

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '4'.

x = 3

Simplifying

x = 3

12x = 8x + 12

First you would subtract 8x from both sides

12x - 8x = 4x for the left side and it cancells out 8x on the right side.

Now we have 4x = 12. Divide 12 and 4 and your answer would be 3.

ANSWER: x = 3