3x-70=7x+30

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Solution for 3x-70=7x+30 equation: 



3x-70=7x+30

We move all terms to the left:

3x-70-(7x+30)=0

We get rid of parentheses

3x-7x-30-70=0

We add all the numbers together, and all the variables

-4x-100=0

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

-4x=100

x=100/-4

x=-25

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