Question

Jerry started doing sit-ups every day. The first day he did 18 sit-ups. Every day after that he did 4 more sit-ups than he had done the previous day. Today Jerry did 38 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.

Answer 1

18 + (4*5) = 38

because 4 * 5 is 20 then 20 + 18 is 38, and that's your answer.

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