31=4x+2x+7

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Solution for 31=4x+2x+7 equation: 



31=4x+2x+7

We move all terms to the left:

31-(4x+2x+7)=0

We add all the numbers together, and all the variables

-(6x+7)+31=0

We get rid of parentheses

-6x-7+31=0

We add all the numbers together, and all the variables

-6x+24=0

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

-6x=-24

x=-24/-6

x=+4

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