7+2e=20

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Solution for 7+2e=20 equation: 



7+2e=20

We move all terms to the left:

7+2e-(20)=0

We add all the numbers together, and all the variables

2e-13=0

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

2e=13

e=13/2

e=6+1/2

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