-8x+9=129

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Solution for -8x+9=129 equation: 


Simplifying
-8x + 9 = 129

Reorder the terms:
9 + -8x = 129

Solving
9 + -8x = 129

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 + -8x = 129 + -9

Combine like terms: 9 + -9 = 0
0 + -8x = 129 + -9
-8x = 129 + -9

Combine like terms: 129 + -9 = 120
-8x = 120

Divide each side by '-8'.
x = -15

Simplifying
x = -15

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