31-9a=-23

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Solution for 31-9a=-23 equation: 



31-9a=-23

We move all terms to the left:

31-9a-(-23)=0

We add all the numbers together, and all the variables

-9a+54=0

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

-9a=-54

a=-54/-9

a=+6

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