-(5x-21)=2x

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Solution for -(5x-21)=2x equation: 



-(5x-21)=2x

We move all terms to the left:

-(5x-21)-(2x)=0

We add all the numbers together, and all the variables

-2x-(5x-21)=0

We get rid of parentheses

-2x-5x+21=0

We add all the numbers together, and all the variables

-7x+21=0

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

-7x=-21

x=-21/-7

x=+3

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