6+12x=138+x

Solution for 6+12x=138+x equation:

Simplifying
6 + 12x = 138 + x

Solving
6 + 12x = 138 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
6 + 12x + -1x = 138 + x + -1x

Combine like terms: 12x + -1x = 11x
6 + 11x = 138 + x + -1x

Combine like terms: x + -1x = 0
6 + 11x = 138 + 0
6 + 11x = 138

Add '-6' to each side of the equation.
6 + -6 + 11x = 138 + -6

Combine like terms: 6 + -6 = 0
0 + 11x = 138 + -6
11x = 138 + -6

Combine like terms: 138 + -6 = 132
11x = 132

Divide each side by '11'.
x = 12

Simplifying
x = 12