2(x+7)-3x=21

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Solution for 2(x+7)-3x=21 equation: 



2(x+7)-3x=21

We move all terms to the left:

2(x+7)-3x-(21)=0

We add all the numbers together, and all the variables

-3x+2(x+7)-21=0

We multiply parentheses

-3x+2x+14-21=0

We add all the numbers together, and all the variables

-1x-7=0

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

-x=7

x=7/-1

x=-7

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