-10=x+21+3x+7

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Solution for -10=x+21+3x+7 equation: 



-10=x+21+3x+7

We move all terms to the left:

-10-(x+21+3x+7)=0

We add all the numbers together, and all the variables

-(4x+28)-10=0

We get rid of parentheses

-4x-28-10=0

We add all the numbers together, and all the variables

-4x-38=0

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

-4x=38

x=38/-4

x=-9+1/2

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