-x-6=6x-90

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Solution for -x-6=6x-90 equation:


Simplifying
-1x + -6 = 6x + -90

Reorder the terms:
-6 + -1x = 6x + -90

Reorder the terms:
-6 + -1x = -90 + 6x

Solving
-6 + -1x = -90 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-6 + -1x + -6x = -90 + 6x + -6x

Combine like terms: -1x + -6x = -7x
-6 + -7x = -90 + 6x + -6x

Combine like terms: 6x + -6x = 0
-6 + -7x = -90 + 0
-6 + -7x = -90

Add '6' to each side of the equation.
-6 + 6 + -7x = -90 + 6

Combine like terms: -6 + 6 = 0
0 + -7x = -90 + 6
-7x = -90 + 6

Combine like terms: -90 + 6 = -84
-7x = -84

Divide each side by '-7'.
x = 12

Simplifying
x = 12

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