-3(7x-3)=9

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



-3(7x-3)=9

We move all terms to the left:

-3(7x-3)-(9)=0

We multiply parentheses

-21x+9-9=0

We add all the numbers together, and all the variables

-21x=0

x=0/-21

x=0

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