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If Alvin is 5 years older then Elga the sum of there age is 69 what is Elgas age
Let Elga's be E
Since the ages sum to 69, then Alvin's is: 69 - E
We then get: 69 - E = E + 5
69 - 5 = E + E
64 = 2E
E, or Elga is: