-90=6x-2(-3x-9)

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Solution for -90=6x-2(-3x-9) equation:


Simplifying
-90 = 6x + -2(-3x + -9)

Reorder the terms:
-90 = 6x + -2(-9 + -3x)
-90 = 6x + (-9 * -2 + -3x * -2)
-90 = 6x + (18 + 6x)

Reorder the terms:
-90 = 18 + 6x + 6x

Combine like terms: 6x + 6x = 12x
-90 = 18 + 12x

Solving
-90 = 18 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
-90 + -12x = 18 + 12x + -12x

Combine like terms: 12x + -12x = 0
-90 + -12x = 18 + 0
-90 + -12x = 18

Add '90' to each side of the equation.
-90 + 90 + -12x = 18 + 90

Combine like terms: -90 + 90 = 0
0 + -12x = 18 + 90
-12x = 18 + 90

Combine like terms: 18 + 90 = 108
-12x = 108

Divide each side by '-12'.
x = -9

Simplifying
x = -9

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