90-(8x-20)=x

Solution for 90-(8x-20)=x equation:

Simplifying
90 + -1(8x + -20) = x

Reorder the terms:
90 + -1(-20 + 8x) = x
90 + (-20 * -1 + 8x * -1) = x
90 + (20 + -8x) = x

Combine like terms: 90 + 20 = 110
110 + -8x = x

Solving
110 + -8x = 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.
110 + -8x + -1x = x + -1x

Combine like terms: -8x + -1x = -9x
110 + -9x = x + -1x

Combine like terms: x + -1x = 0
110 + -9x = 0

Add '-110' to each side of the equation.
110 + -110 + -9x = 0 + -110

Combine like terms: 110 + -110 = 0
0 + -9x = 0 + -110
-9x = 0 + -110

Combine like terms: 0 + -110 = -110
-9x = -110

Divide each side by '-9'.
x = 12.22222222

Simplifying
x = 12.22222222