How to solve for 6x-12+2x=3+8x-15

6x-12+2x=3+8x-15

Simplify:

6x+-12+2x=3+8x+-15

(6x+2x) + (-12) = (8x) + (3+-15) (Combine Like Terms)

8x+-12=8x+-12

8x-12=8x-12

Subtract 8x from both sides.

8x-12-8x=8x-12-8x

-12=-12

Add 12 to both sides.

-12+12=-12+12

0=0

The real numbers are the only solution we can have.