31=7+2x

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Solution for 31=7+2x equation:



31=7+2x
We move all terms to the left:
31-(7+2x)=0
We add all the numbers together, and all the variables
-(2x+7)+31=0
We get rid of parentheses
-2x-7+31=0
We add all the numbers together, and all the variables
-2x+24=0
We move all terms containing x to the left, all other terms to the right
-2x=-24
x=-24/-2
x=+12

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