-7x-9=-2x+31

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Solution for -7x-9=-2x+31 equation: 



-7x-9=-2x+31

We move all terms to the left:

-7x-9-(-2x+31)=0

We get rid of parentheses

-7x+2x-31-9=0

We add all the numbers together, and all the variables

-5x-40=0

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

-5x=40

x=40/-5

x=-8

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