Arrange 7's to 1

You need to arrange three 7 and mathematical symbols to form number 1?




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John's five friends Rachel, Jacob, Phoebe, Joey and Chandler live on the same road.

Rachel lives in the house: A, Jacob lives in the house: B, Phoebe lives in the house: C, Joey lives in the house:D, Chandler lives in the house: E

Mathematically
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B + C + D = 2E
2A = E

The road numbers run from 2 to 222.

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