3a+17=9a-31

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Solution for 3a+17=9a-31 equation: 



3a+17=9a-31

We move all terms to the left:

3a+17-(9a-31)=0

We get rid of parentheses

3a-9a+31+17=0

We add all the numbers together, and all the variables

-6a+48=0

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

-6a=-48

a=-48/-6

a=+8

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