Math

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Ruby is 10 years older than Sam. The sum of their ages is 52. How old is Sam?

  • Math -

    s = Sam's age

    s + s + 10 = 52

    2s = 42

    s - 21

  • Math -

    s=sams age
    s+s+10=52
    2s=-10+52
    2s=42
    s=42/2
    S=21

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