3a-7+2a=9a-3

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Solution for 3a-7+2a=9a-3 equation: 



3a-7+2a=9a-3

We move all terms to the left:

3a-7+2a-(9a-3)=0

We add all the numbers together, and all the variables

5a-(9a-3)-7=0

We get rid of parentheses

5a-9a+3-7=0

We add all the numbers together, and all the variables

-4a-4=0

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

-4a=4

a=4/-4

a=-1

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