-3(x+12)=9

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Solution for -3(x+12)=9 equation: 



-3(x+12)=9

We move all terms to the left:

-3(x+12)-(9)=0

We multiply parentheses

-3x-36-9=0

We add all the numbers together, and all the variables

-3x-45=0

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

-3x=45

x=45/-3

x=-15

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