7x-31=x+12

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Solution for 7x-31=x+12 equation: 



7x-31=x+12

We move all terms to the left:

7x-31-(x+12)=0

We get rid of parentheses

7x-x-12-31=0

We add all the numbers together, and all the variables

6x-43=0

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

6x=43

x=43/6

x=7+1/6

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