(e+5)3=21

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Solution for (e+5)3=21 equation: 



(e+5)3=21

We move all terms to the left:

(e+5)3-(21)=0

We multiply parentheses

3e+15-21=0

We add all the numbers together, and all the variables

3e-6=0

We move all terms containing e to the left, all other terms to the right

3e=6

e=6/3

e=2

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