a-5-7a=1

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Solution for a-5-7a=1 equation: 



a-5-7a=1

We move all terms to the left:

a-5-7a-(1)=0

We add all the numbers together, and all the variables

-6a-6=0

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

-6a=6

a=6/-6

a=-1

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