3.9a+1.6a=3.3

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Solution for 3.9a+1.6a=3.3 equation: 



3.9a+1.6a=3.3

We move all terms to the left:

3.9a+1.6a-(3.3)=0

We add all the numbers together, and all the variables

5.5a-3.3=0

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

5.5a=3.3

a=3.3/5.5

a=2.5384615384615/4.2307692307692

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