3x+21=70+10x

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Solution for 3x+21=70+10x equation: 



3x+21=70+10x

We move all terms to the left:

3x+21-(70+10x)=0

We add all the numbers together, and all the variables

3x-(10x+70)+21=0

We get rid of parentheses

3x-10x-70+21=0

We add all the numbers together, and all the variables

-7x-49=0

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

-7x=49

x=49/-7

x=-7

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