2a+9=-3a-7

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



2a+9=-3a-7

We move all terms to the left:

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

We get rid of parentheses

2a+3a+7+9=0

We add all the numbers together, and all the variables

5a+16=0

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

5a=-16

a=-16/5

a=-3+1/5

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