31=10+x/2

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Solution for 31=10+x/2 equation: 



31=10+x/2

We move all terms to the left:

31-(10+x/2)=0

We add all the numbers together, and all the variables

-(x/2+10)+31=0

We get rid of parentheses

-x/2-10+31=0

We multiply all the terms by the denominator


-x-10*2+31*2=0

We add all the numbers together, and all the variables

-1x+42=0

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

-x=-42

x=-42/-1

x=+42

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