8+6x+7x=-31

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Solution for 8+6x+7x=-31 equation: 


Simplifying
8 + 6x + 7x = -31

Combine like terms: 6x + 7x = 13x
8 + 13x = -31

Solving
8 + 13x = -31

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 13x = -31 + -8

Combine like terms: 8 + -8 = 0
0 + 13x = -31 + -8
13x = -31 + -8

Combine like terms: -31 + -8 = -39
13x = -39

Divide each side by '13'.
x = -3

Simplifying
x = -3

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