e=7-e

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Solution for e=7-e equation: 



e=7-e

We move all terms to the left:

e-(7-e)=0

We add all the numbers together, and all the variables

e-(-1e+7)=0

We get rid of parentheses

e+1e-7=0

We add all the numbers together, and all the variables

2e-7=0

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

2e=7

e=7/2

e=3+1/2

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