-30=x+70

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Solution for -30=x+70 equation: 



-30=x+70

We move all terms to the left:

-30-(x+70)=0

We get rid of parentheses

-x-70-30=0

We add all the numbers together, and all the variables

-1x-100=0

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

-x=100

x=100/-1

x=-100

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