-9a+9=-27

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Solution for -9a+9=-27 equation: 



-9a+9=-27

We move all terms to the left:

-9a+9-(-27)=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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