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-50=-10-10e
We move all terms to the left:
-50-(-10-10e)=0
We add all the numbers together, and all the variables
-(-10e-10)-50=0
We get rid of parentheses
10e+10-50=0
We add all the numbers together, and all the variables
10e-40=0
We move all terms containing e to the left, all other terms to the right
10e=40
e=40/10
e=4
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