(2x)=(5x+21)

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



(2x)=(5x+21)

We move all terms to the left:

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



We calculate terms in parentheses: -((5x+21)), so:

(5x+21)

We get rid of parentheses

5x+21

Back to the equation:

-(5x+21)



We get rid of parentheses

2x-5x-21=0

We add all the numbers together, and all the variables

-3x-21=0

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

-3x=21

x=21/-3

x=-7

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