-70=x+20

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Solution for -70=x+20 equation: 



-70=x+20

We move all terms to the left:

-70-(x+20)=0

We get rid of parentheses

-x-20-70=0

We add all the numbers together, and all the variables

-1x-90=0

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

-x=90

x=90/-1

x=-90

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