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-8e-4=-6e-28
We move all terms to the left:
-8e-4-(-6e-28)=0
We get rid of parentheses
-8e+6e+28-4=0
We add all the numbers together, and all the variables
-2e+24=0
We move all terms containing e to the left, all other terms to the right
-2e=-24
e=-24/-2
e=+12
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