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5.4a+8.2=9.8a-2.8
We move all terms to the left:
5.4a+8.2-(9.8a-2.8)=0
We get rid of parentheses
5.4a-9.8a+2.8+8.2=0
We add all the numbers together, and all the variables
-4.4a+11=0
We move all terms containing a to the left, all other terms to the right
-4.4a=-11
a=-11/-4.4
a=2+1/2
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