2(x+3)=21-3x

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



2(x+3)=21-3x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

2x-(-3x+21)+6=0

We get rid of parentheses

2x+3x-21+6=0

We add all the numbers together, and all the variables

5x-15=0

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

5x=15

x=15/5

x=3

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