-3a=8(-9)

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Solution for -3a=8(-9) equation: 



-3a=8(-9)

We move all terms to the left:

-3a-(8(-9))=0

We add all the numbers together, and all the variables

-3a+72=0

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

-3a=-72

a=-72/-3

a=+24

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