2a-9=7a+4

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Solution for 2a-9=7a+4 equation: 



2a-9=7a+4

We move all terms to the left:

2a-9-(7a+4)=0

We get rid of parentheses

2a-7a-4-9=0

We add all the numbers together, and all the variables

-5a-13=0

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

-5a=13

a=13/-5

a=-2+3/5

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