2a-1=9a-99

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Solution for 2a-1=9a-99 equation: 



2a-1=9a-99

We move all terms to the left:

2a-1-(9a-99)=0

We get rid of parentheses

2a-9a+99-1=0

We add all the numbers together, and all the variables

-7a+98=0

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

-7a=-98

a=-98/-7

a=+14

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