-3a-6=20-a

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Solution for -3a-6=20-a equation: 



-3a-6=20-a

We move all terms to the left:

-3a-6-(20-a)=0

We add all the numbers together, and all the variables

-3a-(-1a+20)-6=0

We get rid of parentheses

-3a+1a-20-6=0

We add all the numbers together, and all the variables

-2a-26=0

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

-2a=26

a=26/-2

a=-13

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