-3(2a+4)-(9a-3)=0

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Solution for -3(2a+4)-(9a-3)=0 equation: 



-3(2a+4)-(9a-3)=0

We multiply parentheses

-6a-(9a-3)-12=0

We get rid of parentheses

-6a-9a+3-12=0

We add all the numbers together, and all the variables

-15a-9=0

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

-15a=9

a=9/-15

a=-3/5

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