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38=-40+9.2e
We move all terms to the left:
38-(-40+9.2e)=0
We add all the numbers together, and all the variables
-(9.2e-40)+38=0
We get rid of parentheses
-9.2e+40+38=0
We add all the numbers together, and all the variables
-9.2e+78=0
We move all terms containing e to the left, all other terms to the right
-9.2e=-78
e=-78/-9.2
e=8+3.1428571428571/6.5714285714285
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