Question

Solve for the value of x 3x - 9 + 12 - 6x = -18

Answer 1

`x=7`

Explanation:

`3x - 9 + 12 - 6x = -18`

`3x+ - 9 + 12+ - 6x = -18`

`3x+- 6x + - 9 + 12+ = -18`

`-3x+ 3= -18`

`-3x= -18-3`

`-3x= -21`

`3x=21`

`x=21/3`

`x=7`

Answer 2

x =7

Explanation:

3x - 9 + 12 - 6x = -18

Combine like terms

-3x +3 = -18

Subtract 3 from each side

-3x +3 -3 = -18 -3

-3x = -21

Divide each side by-3

-3x /-3 = -21 /-3

x =7