9a+5=-12a

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Solution for 9a+5=-12a equation: 



9a+5=-12a

We move all terms to the left:

9a+5-(-12a)=0

We get rid of parentheses

9a+12a+5=0

We add all the numbers together, and all the variables

21a+5=0

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

21a=-5

a=-5/21

a=-5/21

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