7e+2=21

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Solution for 7e+2=21 equation: 



7e+2=21

We move all terms to the left:

7e+2-(21)=0

We add all the numbers together, and all the variables

7e-19=0

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

7e=19

e=19/7

e=2+5/7

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