1=1-2a-7a

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Solution for 1=1-2a-7a equation: 



1=1-2a-7a

We move all terms to the left:

1-(1-2a-7a)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

9a-1+1=0

We add all the numbers together, and all the variables

9a=0

a=0/9

a=0

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