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180=900e^-0.5
We move all terms to the left:
180-(900e^-0.5)=0
We get rid of parentheses
-900e^+0.5+180=0
We add all the numbers together, and all the variables
-900e+180.5=0
We move all terms containing e to the left, all other terms to the right
-900e=-180.5
e=-180.5/-900
e=1/4.9861495844875
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