-3(x-4)+9=21

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Solution for -3(x-4)+9=21 equation: 



-3(x-4)+9=21

We move all terms to the left:

-3(x-4)+9-(21)=0

We add all the numbers together, and all the variables

-3(x-4)-12=0

We multiply parentheses

-3x+12-12=0

We add all the numbers together, and all the variables

-3x=0

x=0/-3

x=0

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