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8.3a+4.2=26.5
We move all terms to the left:
8.3a+4.2-(26.5)=0
We add all the numbers together, and all the variables
8.3a-22.3=0
We move all terms containing a to the left, all other terms to the right
8.3a=22.3
a=22.3/8.3
a=2+3.35294117647/4.88235294118
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