2a-1=3a-9

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Solution for 2a-1=3a-9 equation: 



2a-1=3a-9

We move all terms to the left:

2a-1-(3a-9)=0

We get rid of parentheses

2a-3a+9-1=0

We add all the numbers together, and all the variables

-1a+8=0

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

-a=-8

a=-8/-1

a=+8

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