9a-2=3a-20

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Solution for 9a-2=3a-20 equation: 



9a-2=3a-20

We move all terms to the left:

9a-2-(3a-20)=0

We get rid of parentheses

9a-3a+20-2=0

We add all the numbers together, and all the variables

6a+18=0

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

6a=-18

a=-18/6

a=-3

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