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8 September, 19:58

Andell is 9 years older than Arnez. arnez is 3 years younger than Marianne. the sum of their ages is 24. what is the age of each child

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  1. 8 September, 22:14
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    Arnez is 4. Andell is 13. Marianne is 7.

    Step-by-step explanation:

    Let x represent Arnez's age. If we write out an equation, we end up with this:

    24 = (9 + x) + (x + 3) + x

    24 = 9 + x + x + 3 + x

    24 = (x + x + x) + (9 + 3)

    24 = 3x + 12

    24 - 12 = 3x + 12 - 12

    12 / 3 = 3x / 3

    4 = x
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