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10 October, 13:43

Alvin is 15 years younger than Elga. The sum of their ages is 35. What is Elga's age?

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Answers (2)
  1. 10 October, 13:56
    0
    Elga is 25 and Alvin is 10

    Step-by-step explanation:

    25 - 10 is 15

    25 + 10 = 35
  2. 10 October, 13:57
    0
    25

    Step-by-step explanation:

    Let A = Alvin's age

    and E = Elga's age

    We have two conditions:

    (1) A = E - 15

    (2) A + E = 35 Substitute (1) into (2)

    E - 15 + E = 35 Combine like terms

    2E - 15 = 35 Add 15 to each side

    2E = 50 Divide each side by 2

    E = 25
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