x-9*(x+8)=0

Solution for x-9*(x+8)=0 equation:

Simplifying
x + -9(x + 8) = 0

Reorder the terms:
x + -9(8 + x) = 0
x + (8 * -9 + x * -9) = 0
x + (-72 + -9x) = 0

Reorder the terms:
-72 + x + -9x = 0

Combine like terms: x + -9x = -8x
-72 + -8x = 0

Solving
-72 + -8x = 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 + -8x = 0 + 72

Combine like terms: -72 + 72 = 0
0 + -8x = 0 + 72
-8x = 0 + 72

Combine like terms: 0 + 72 = 72
-8x = 72

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

Simplifying
x = -9