7x-21=3x+83

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Solution for 7x-21=3x+83 equation: 



7x-21=3x+83

We move all terms to the left:

7x-21-(3x+83)=0

We get rid of parentheses

7x-3x-83-21=0

We add all the numbers together, and all the variables

4x-104=0

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

4x=104

x=104/4

x=26

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