-7(a)=1.

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Solution for -7(a)=1. equation: 



-7(a)=1.

We move all terms to the left:

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

We add all the numbers together, and all the variables

-7a-1=0

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

-7a=1

a=1/-7

a=-1/7

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