9+2a=-3-2a

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



9+2a=-3-2a

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

2a+2a+3+9=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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