-13x-31=9-8x

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Solution for -13x-31=9-8x equation:


Simplifying
-13x + -31 = 9 + -8x

Reorder the terms:
-31 + -13x = 9 + -8x

Solving
-31 + -13x = 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.
-31 + -13x + 8x = 9 + -8x + 8x

Combine like terms: -13x + 8x = -5x
-31 + -5x = 9 + -8x + 8x

Combine like terms: -8x + 8x = 0
-31 + -5x = 9 + 0
-31 + -5x = 9

Add '31' to each side of the equation.
-31 + 31 + -5x = 9 + 31

Combine like terms: -31 + 31 = 0
0 + -5x = 9 + 31
-5x = 9 + 31

Combine like terms: 9 + 31 = 40
-5x = 40

Divide each side by '-5'.
x = -8

Simplifying
x = -8

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