9x^2+8x-9=8x

Solution for 9x^2+8x-9=8x equation:

Simplifying
9x2 + 8x + -9 = 8x

Reorder the terms:
-9 + 8x + 9x2 = 8x

Add '-8x' to each side of the equation.
-9 + 8x + -8x + 9x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
-9 + 0 + 9x2 = 8x + -8x
-9 + 9x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
-9 + 9x2 = 0

Solving
-9 + 9x2 = 0

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 9x2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 9x2 = 0 + 9
9x2 = 0 + 9

Combine like terms: 0 + 9 = 9
9x2 = 9

Divide each side by '9'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}