-3(a+6)=6(a-9)

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Solution for -3(a+6)=6(a-9) equation: 



-3(a+6)=6(a-9)

We move all terms to the left:

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

We multiply parentheses

-3a-(6(a-9))-18=0



We calculate terms in parentheses: -(6(a-9)), so:

6(a-9)

We multiply parentheses

6a-54

Back to the equation:

-(6a-54)



We get rid of parentheses

-3a-6a+54-18=0

We add all the numbers together, and all the variables

-9a+36=0

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

-9a=-36

a=-36/-9

a=+4

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