8x-9=-81

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Solution for 8x-9=-81 equation: 


Simplifying
8x + -9 = -81

Reorder the terms:
-9 + 8x = -81

Solving
-9 + 8x = -81

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 = -81 + 9

Combine like terms: -9 + 9 = 0
0 + 8x = -81 + 9
8x = -81 + 9

Combine like terms: -81 + 9 = -72
8x = -72

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

Simplifying
x = -9

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