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5.5a=9.0
We move all terms to the left:
5.5a-(9.0)=0
We add all the numbers together, and all the variables
5.5a-9=0
We move all terms containing a to the left, all other terms to the right
5.5a=9
a=9/5.5
a=1+2.33333333333/3.66666666667
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