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-19=2e-5
We move all terms to the left:
-19-(2e-5)=0
We get rid of parentheses
-2e+5-19=0
We add all the numbers together, and all the variables
-2e-14=0
We move all terms containing e to the left, all other terms to the right
-2e=14
e=14/-2
e=-7
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