2x+21=-6+3x

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Solution for 2x+21=-6+3x equation: 



2x+21=-6+3x

We move all terms to the left:

2x+21-(-6+3x)=0

We add all the numbers together, and all the variables

2x-(3x-6)+21=0

We get rid of parentheses

2x-3x+6+21=0

We add all the numbers together, and all the variables

-1x+27=0

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

-x=-27

x=-27/-1

x=+27

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