70=3x+7

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Solution for 70=3x+7 equation: 



70=3x+7

We move all terms to the left:

70-(3x+7)=0

We get rid of parentheses

-3x-7+70=0

We add all the numbers together, and all the variables

-3x+63=0

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

-3x=-63

x=-63/-3

x=+21

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