170=30+2x

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Solution for 170=30+2x equation: 



170=30+2x

We move all terms to the left:

170-(30+2x)=0

We add all the numbers together, and all the variables

-(2x+30)+170=0

We get rid of parentheses

-2x-30+170=0

We add all the numbers together, and all the variables

-2x+140=0

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

-2x=-140

x=-140/-2

x=+70

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