-21+9x=10+10x

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Solution for -21+9x=10+10x equation: 



-21+9x=10+10x

We move all terms to the left:

-21+9x-(10+10x)=0

We add all the numbers together, and all the variables

9x-(10x+10)-21=0

We get rid of parentheses

9x-10x-10-21=0

We add all the numbers together, and all the variables

-1x-31=0

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

-x=31

x=31/-1

x=-31

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