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30 September, 03:25

Evaluate 7 r - 15 s 7r - s 15 7, r, minus, start fraction, 15, divided by, s, end fraction when r = 3 r=3r, equals, 3 and s = 5 s=5s, equals, 5.

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  1. 30 September, 03:49
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    Answer: 18

    Step-by-step explanation:

    Evaluate 7 r - 15 / s

    Given that r = 3 and s = 5

    7r - 15/s

    Substitute 3 for r and 5 for s in the above expression

    7 (3) - 15/5

    = 21 - 3

    = 18
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