5a-3+2a=3a+9

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Solution for 5a-3+2a=3a+9 equation: 



5a-3+2a=3a+9

We move all terms to the left:

5a-3+2a-(3a+9)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

7a-3a-9-3=0

We add all the numbers together, and all the variables

4a-12=0

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

4a=12

a=12/4

a=3

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