-2x-90=78-10x

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Solution for -2x-90=78-10x equation:


Simplifying
-2x + -90 = 78 + -10x

Reorder the terms:
-90 + -2x = 78 + -10x

Solving
-90 + -2x = 78 + -10x

Solving for variable 'x'.

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

Add '10x' to each side of the equation.
-90 + -2x + 10x = 78 + -10x + 10x

Combine like terms: -2x + 10x = 8x
-90 + 8x = 78 + -10x + 10x

Combine like terms: -10x + 10x = 0
-90 + 8x = 78 + 0
-90 + 8x = 78

Add '90' to each side of the equation.
-90 + 90 + 8x = 78 + 90

Combine like terms: -90 + 90 = 0
0 + 8x = 78 + 90
8x = 78 + 90

Combine like terms: 78 + 90 = 168
8x = 168

Divide each side by '8'.
x = 21

Simplifying
x = 21

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