-8a-15-4a-15=9

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Solution for -8a-15-4a-15=9 equation: 



-8a-15-4a-15=9

We move all terms to the left:

-8a-15-4a-15-(9)=0

We add all the numbers together, and all the variables

-12a-39=0

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

-12a=39

a=39/-12

a=-3+1/4

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