9a-2=7a+4

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



9a-2=7a+4

We move all terms to the left:

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

We get rid of parentheses

9a-7a-4-2=0

We add all the numbers together, and all the variables

2a-6=0

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

2a=6

a=6/2

a=3

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