-87=9-8x

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Solution for -87=9-8x equation:


Simplifying
-87 = 9 + -8x

Solving
-87 = 9 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
-87 + 8x = 9 + -8x + 8x

Combine like terms: -8x + 8x = 0
-87 + 8x = 9 + 0
-87 + 8x = 9

Add '87' to each side of the equation.
-87 + 87 + 8x = 9 + 87

Combine like terms: -87 + 87 = 0
0 + 8x = 9 + 87
8x = 9 + 87

Combine like terms: 9 + 87 = 96
8x = 96

Divide each side by '8'.
x = 12

Simplifying
x = 12

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