-7+3x=4x-28

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Solution for -7+3x=4x-28 equation: 



-7+3x=4x-28

We move all terms to the left:

-7+3x-(4x-28)=0

We get rid of parentheses

3x-4x+28-7=0

We add all the numbers together, and all the variables

-1x+21=0

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

-x=-21

x=-21/-1

x=+21

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