Question

What is the solution to this equation ? x + 12 +3x =18 - 2x

Answer 1

x+12+3x=18-2x

12+4x=18-2x

-12 +2x -12 +2x

_______________

6x=6

__  __

 6    6

x=1

Answer 2

First, you combine like terms: x+3x=4x: 12+4x=18-2x

Second, you add the 2x to each side (inverse operation): 12+6x=18

Third, you subtract 12 from 18 to cancel out the 12 (inverse operation): 6x=6

Fourth, you divide each side by 6 to find the value of x

The answer is x=1