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4.3a=28.81
We move all terms to the left:
4.3a-(28.81)=0
We add all the numbers together, and all the variables
4.3a-28.81=0
We move all terms containing a to the left, all other terms to the right
4.3a=28.81
a=28.81/4.3
a=6+2.980198019802/4.2574257425743
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