9-9(9+x)=0

Solution for 9-9(9+x)=0 equation:

Simplifying
9 + -9(9 + x) = 0
9 + (9 * -9 + x * -9) = 0
9 + (-81 + -9x) = 0

Combine like terms: 9 + -81 = -72
-72 + -9x = 0

Solving
-72 + -9x = 0

Solving for variable 'x'.

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

Add '72' to each side of the equation.
-72 + 72 + -9x = 0 + 72

Combine like terms: -72 + 72 = 0
0 + -9x = 0 + 72
-9x = 0 + 72

Combine like terms: 0 + 72 = 72
-9x = 72

Divide each side by '-9'.
x = -8

Simplifying
x = -8