(-3)x-8=31

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Solution for (-3)x-8=31 equation: 



(-3)x-8=31

We move all terms to the left:

(-3)x-8-(31)=0

We add all the numbers together, and all the variables

(-3)x-39=0

We multiply parentheses

-3x-39=0

We move all terms containing x to the left, all other terms to the right

-3x=39

x=39/-3

x=-13

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