100-x/2=x+31

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Solution for 100-x/2=x+31 equation: 



100-x/2=x+31

We move all terms to the left:

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

We get rid of parentheses

-x/2-x-31+100=0

We multiply all the terms by the denominator


-x-x*2-31*2+100*2=0

We add all the numbers together, and all the variables

-1x-x*2+138=0

Wy multiply elements

-1x-2x+138=0

We add all the numbers together, and all the variables

-3x+138=0

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

-3x=-138

x=-138/-3

x=+46

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