2x+31=9x-18

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Solution for 2x+31=9x-18 equation: 



2x+31=9x-18

We move all terms to the left:

2x+31-(9x-18)=0

We get rid of parentheses

2x-9x+18+31=0

We add all the numbers together, and all the variables

-7x+49=0

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

-7x=-49

x=-49/-7

x=+7

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