31=2x-7

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Solution for 31=2x-7 equation: 



31=2x-7

We move all terms to the left:

31-(2x-7)=0

We get rid of parentheses

-2x+7+31=0

We add all the numbers together, and all the variables

-2x+38=0

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

-2x=-38

x=-38/-2

x=+19

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