2a-9=7a

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Solution for 2a-9=7a equation: 



2a-9=7a

We move all terms to the left:

2a-9-(7a)=0

We add all the numbers together, and all the variables

-5a-9=0

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

-5a=9

a=9/-5

a=-1+4/5

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