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

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



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

We move all terms to the left:

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

We multiply parentheses

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

We get rid of parentheses

6x-3x-21+6=0

We add all the numbers together, and all the variables

3x-15=0

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

3x=15

x=15/3

x=5

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