-9a=-4

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Solution for -9a=-4 equation: 



-9a=-4

We move all terms to the left:

-9a-(-4)=0

We add all the numbers together, and all the variables

-9a+4=0

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

-9a=-4

a=-4/-9

a=4/9

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