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-3.2-a=11.2
We move all terms to the left:
-3.2-a-(11.2)=0
We add all the numbers together, and all the variables
-1a-14.4=0
We move all terms containing a to the left, all other terms to the right
-a=14.4
a=14.4/-1
a=-14+0.4/1
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