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27 December, 03:43

Jerry started doing sit-ups every day. The first day he did 15 sit-ups then he had done the previous day. Today Jerry did 33 sit - ups. Right and equation that could be solved to find the number of days Jerry has been doing sit-ups, Not counting the first day

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  1. 27 December, 07:13
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    Y = sit ups, x = days

    y = 2x + 15

    33 = 2x + 15 (subtract 15 from both sides)

    18 = 2x (divide both sides by 2)

    9 = x, 9 days
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