Question

A textbook store sold a combined of 253 chemistry and sociology textbooks in a week. The sumner of sociology textbooks sold was 59 less than the number of chemistry textbooks sold. How many textbooks of each type were sold.

Answer 1

14927

2277+12265=14927

Answer 2

Answer:

Step-by-step explanation:

We have two types of textbooks. Let's use "x" to represent the number of math textbooks and "y" to represent the number of history textbooks.

Altogether, the bookseller sold 240 math and history textbooks. So:

x + y = 240

Now, the number of history textbooks sold was 72 less than the number of math books sold. So:

y = x - 72

Now we can substitute for y in the equation and solve:

x + y = 240

x + (x - 72) = 240

2x - 72 = 240

2x = 312

x = 156