2-4a-8=9+a

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Solution for 2-4a-8=9+a equation: 



2-4a-8=9+a

We move all terms to the left:

2-4a-8-(9+a)=0

We add all the numbers together, and all the variables

-4a-(a+9)+2-8=0

We add all the numbers together, and all the variables

-4a-(a+9)-6=0

We get rid of parentheses

-4a-a-9-6=0

We add all the numbers together, and all the variables

-5a-15=0

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

-5a=15

a=15/-5

a=-3

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