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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