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12.45e-12.45=102.45
We move all terms to the left:
12.45e-12.45-(102.45)=0
We add all the numbers together, and all the variables
12.45e-114.9=0
We move all terms containing e to the left, all other terms to the right
12.45e=114.9
e=114.9/12.45
e=9+1/4.3684210526316
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