a+9-8a=2a+17-8

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Solution for a+9-8a=2a+17-8 equation: 



a+9-8a=2a+17-8

We move all terms to the left:

a+9-8a-(2a+17-8)=0

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

-7a-(2a+9)+9=0

We get rid of parentheses

-7a-2a-9+9=0

We add all the numbers together, and all the variables

-9a=0

a=0/-9

a=0

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