Mathematics, 02.03.2021 06:00, vicinimlv19

jerry started doing sit ups every day. The first day he did 12 sit-ups. everyday after that he did 4 more sit-ups than he had done the previous day. today jerry did 28 sit-ups. Enter an 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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jerry started doing sit ups every day. The first day he did 12 sit-ups. everyday after that he did 4...