7x-21=10-4x+20

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Solution for 7x-21=10-4x+20 equation: 



7x-21=10-4x+20

We move all terms to the left:

7x-21-(10-4x+20)=0

We add all the numbers together, and all the variables

7x-(-4x+30)-21=0

We get rid of parentheses

7x+4x-30-21=0

We add all the numbers together, and all the variables

11x-51=0

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

11x=51

x=51/11

x=4+7/11

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