-7a-1=17-9a

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Solution for -7a-1=17-9a equation: 



-7a-1=17-9a

We move all terms to the left:

-7a-1-(17-9a)=0

We add all the numbers together, and all the variables

-7a-(-9a+17)-1=0

We get rid of parentheses

-7a+9a-17-1=0

We add all the numbers together, and all the variables

2a-18=0

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

2a=18

a=18/2

a=9

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