2(x+7)=x+21

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



2(x+7)=x+21

We move all terms to the left:

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

We multiply parentheses

2x-(x+21)+14=0

We get rid of parentheses

2x-x-21+14=0

We add all the numbers together, and all the variables

x-7=0

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

x=7

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