7a-4+2a=3a

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Solution for 7a-4+2a=3a equation: 



7a-4+2a=3a

We move all terms to the left:

7a-4+2a-(3a)=0

We add all the numbers together, and all the variables

6a-4=0

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

6a=4

a=4/6

a=2/3

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