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8e-20=6e-16
We move all terms to the left:
8e-20-(6e-16)=0
We get rid of parentheses
8e-6e+16-20=0
We add all the numbers together, and all the variables
2e-4=0
We move all terms containing e to the left, all other terms to the right
2e=4
e=4/2
e=2
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