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4 July, 19:54

Beth is 5 years younger than Celeste. Next year, their ages will have a sum equal to 57. How old ech now?

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  1. 4 July, 22:25
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    Celeste is 30 and Beth is 25

    let x be Celeste's age now then Beth is x - 5

    next year they will be 1 year older

    Celeste's age will be x + 1 and Beth will be x - 5 + 1 = x - 4

    the sum of their ages is therefore

    x + 1 + x - 4 = 57

    2x - 3 = 57 (add 3 to both sides)

    2x = 60 (divide both sides by 2)

    x = 30

    Celeste is 30 and Beth is 30 - 5 = 25
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