5a+9=3a-9

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



5a+9=3a-9

We move all terms to the left:

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

We get rid of parentheses

5a-3a+9+9=0

We add all the numbers together, and all the variables

2a+18=0

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

2a=-18

a=-18/2

a=-9

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