3x-7=7x+20

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Solution for 3x-7=7x+20 equation: 



3x-7=7x+20

We move all terms to the left:

3x-7-(7x+20)=0

We get rid of parentheses

3x-7x-20-7=0

We add all the numbers together, and all the variables

-4x-27=0

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

-4x=27

x=27/-4

x=-6+3/4

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