7x-21=10-4x

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



7x-21=10-4x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

7x+4x-10-21=0

We add all the numbers together, and all the variables

11x-31=0

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

11x=31

x=31/11

x=2+9/11

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