17-2a=81

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Solution for 17-2a=81 equation: 



17-2a=81

We move all terms to the left:

17-2a-(81)=0

We add all the numbers together, and all the variables

-2a-64=0

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

-2a=64

a=64/-2

a=-32

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