Jerry started doing sit-ups every day. The first day he did 18 sit-ups. Every day after that he did 2 more sit-ups than he had done the previous day. Today Jerry did 22 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.

Q: integers

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A: We have to find odd number

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.