2x+1=(7x+21)+2x

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Solution for 2x+1=(7x+21)+2x equation: 



2x+1=(7x+21)+2x

We move all terms to the left:

2x+1-((7x+21)+2x)=0



We calculate terms in parentheses: -((7x+21)+2x), so:

(7x+21)+2x

We add all the numbers together, and all the variables

2x+(7x+21)

We get rid of parentheses

2x+7x+21

We add all the numbers together, and all the variables

9x+21

Back to the equation:

-(9x+21)



We get rid of parentheses

2x-9x-21+1=0

We add all the numbers together, and all the variables

-7x-20=0

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

-7x=20

x=20/-7

x=-2+6/7

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