6x+6+7x=-72

Solution for 6x+6+7x=-72 equation:

Simplifying
6x + 6 + 7x = -72

Reorder the terms:
6 + 6x + 7x = -72

Combine like terms: 6x + 7x = 13x
6 + 13x = -72

Solving
6 + 13x = -72

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 + 13x = -72 + -6

Combine like terms: 6 + -6 = 0
0 + 13x = -72 + -6
13x = -72 + -6

Combine like terms: -72 + -6 = -78
13x = -78

Divide each side by '13'.
x = -6

Simplifying
x = -6