Question

A textbook store sold a combined total of 289 sociology and math textbooks in a week. The number of math textbooks sold was 65 less than the number of sociology textbooks sold. How many textbooks of each type were sold?

Answer 1

Contradictrion

Explanation:

First write an equation. If the total is 289, then that goes one the right side of the =. Sociology textbooks will be x. If there were 65 less than x, it will be 65-x. Lets set it up:

x + 65 -x =289

Then combine like terms.

65 = 289

There are no values of x that make the equation true. The input is a contradiction.

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