3(x+2)-x=12

Solution for 3(x+2)-x=12 equation:

Simplifying
3(x + 2) + -1x = 12

Reorder the terms:
3(2 + x) + -1x = 12
(2 * 3 + x * 3) + -1x = 12
(6 + 3x) + -1x = 12

Combine like terms: 3x + -1x = 2x
6 + 2x = 12

Solving
6 + 2x = 12

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 2x = 12 + -6

Combine like terms: 6 + -6 = 0
0 + 2x = 12 + -6
2x = 12 + -6

Combine like terms: 12 + -6 = 6
2x = 6

Divide each side by '2'.
x = 3

Simplifying
x = 3