3.1a+9+11.9a+7=0

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Solution for 3.1a+9+11.9a+7=0 equation: 



3.1a+9+11.9a+7=0

We add all the numbers together, and all the variables

15a+16=0

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

15a=-16

a=-16/15

a=-1+1/15

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