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12.5+0.4e=14.75+0.25
We move all terms to the left:
12.5+0.4e-(14.75+0.25)=0
We add all the numbers together, and all the variables
0.4e+12.5-15=0
We add all the numbers together, and all the variables
0.4e-2.5=0
We move all terms containing e to the left, all other terms to the right
0.4e=2.5
e=2.5/0.4
e=6+0.1/0.4
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