2a-5+7a=3

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Solution for 2a-5+7a=3 equation: 



2a-5+7a=3

We move all terms to the left:

2a-5+7a-(3)=0

We add all the numbers together, and all the variables

9a-8=0

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

9a=8

a=8/9

a=8/9

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