6a-9=12(a-5)

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Solution for 6a-9=12(a-5) equation: 



6a-9=12(a-5)

We move all terms to the left:

6a-9-(12(a-5))=0



We calculate terms in parentheses: -(12(a-5)), so:

12(a-5)

We multiply parentheses

12a-60

Back to the equation:

-(12a-60)



We get rid of parentheses

6a-12a+60-9=0

We add all the numbers together, and all the variables

-6a+51=0

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

-6a=-51

a=-51/-6

a=8+1/2

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