2x=(x-7)+21

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



2x=(x-7)+21

We move all terms to the left:

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



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

(x-7)+21

We get rid of parentheses

x-7+21

We add all the numbers together, and all the variables

x+14

Back to the equation:

-(x+14)



We get rid of parentheses

2x-x-14=0

We add all the numbers together, and all the variables

x-14=0

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

x=14

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