6a+3=-9

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Solution for 6a+3=-9 equation: 



6a+3=-9

We move all terms to the left:

6a+3-(-9)=0

We add all the numbers together, and all the variables

6a+12=0

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

6a=-12

a=-12/6

a=-2

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