-87=3x+6x-6

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Solution for -87=3x+6x-6 equation:


Simplifying
-87 = 3x + 6x + -6

Reorder the terms:
-87 = -6 + 3x + 6x

Combine like terms: 3x + 6x = 9x
-87 = -6 + 9x

Solving
-87 = -6 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-87 + -9x = -6 + 9x + -9x

Combine like terms: 9x + -9x = 0
-87 + -9x = -6 + 0
-87 + -9x = -6

Add '87' to each side of the equation.
-87 + 87 + -9x = -6 + 87

Combine like terms: -87 + 87 = 0
0 + -9x = -6 + 87
-9x = -6 + 87

Combine like terms: -6 + 87 = 81
-9x = 81

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

Simplifying
x = -9

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