11.9+3a=-16.9

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Solution for 11.9+3a=-16.9 equation: 



11.9+3a=-16.9

We move all terms to the left:

11.9+3a-(-16.9)=0

We add all the numbers together, and all the variables

3a+28.8=0

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

3a=-28.8

a=-28.8/3

a=-9+1/1.66666666667

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