6x+6=-99-9x

Solution for 6x+6=-99-9x equation:

Simplifying
6x + 6 = -99 + -9x

Reorder the terms:
6 + 6x = -99 + -9x

Solving
6 + 6x = -99 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
6 + 6x + 9x = -99 + -9x + 9x

Combine like terms: 6x + 9x = 15x
6 + 15x = -99 + -9x + 9x

Combine like terms: -9x + 9x = 0
6 + 15x = -99 + 0
6 + 15x = -99

Add '-6' to each side of the equation.
6 + -6 + 15x = -99 + -6

Combine like terms: 6 + -6 = 0
0 + 15x = -99 + -6
15x = -99 + -6

Combine like terms: -99 + -6 = -105
15x = -105

Divide each side by '15'.
x = -7

Simplifying
x = -7