-3(7x+9)=21x-27

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Solution for -3(7x+9)=21x-27 equation: 



-3(7x+9)=21x-27

We move all terms to the left:

-3(7x+9)-(21x-27)=0

We multiply parentheses

-21x-(21x-27)-27=0

We get rid of parentheses

-21x-21x+27-27=0

We add all the numbers together, and all the variables

-42x=0

x=0/-42

x=0

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