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3e=(e+4)
We move all terms to the left:
3e-((e+4))=0
We calculate terms in parentheses: -((e+4)), so:We get rid of parentheses
(e+4)
We get rid of parentheses
e+4
Back to the equation:
-(e+4)
3e-e-4=0
We add all the numbers together, and all the variables
2e-4=0
We move all terms containing e to the left, all other terms to the right
2e=4
e=4/2
e=2
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