100=2x+27+31

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Solution for 100=2x+27+31 equation: 



100=2x+27+31

We move all terms to the left:

100-(2x+27+31)=0

We add all the numbers together, and all the variables

-(2x+58)+100=0

We get rid of parentheses

-2x-58+100=0

We add all the numbers together, and all the variables

-2x+42=0

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

-2x=-42

x=-42/-2

x=+21

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