Question

Rachel works at a bookstore. On Tuesday, she sold twice as many books as she did on Monday. On Wednesday, she sold 6 fewer books than she did on Tuesday. During the three days Rachel sold 19 books. Create an equation that can be used to find m, the number of books Rachel sold on Monday.
Equation:

Answer 1

Answer:

2x +x + 2x-6 =19

5x - 6 = 19

x = 5

Step-by-step explanation:

let the no. of books sold on Monday be x

                                              Tuesday be 2x

                                              Wednesday be 2x - 6

books sold on these 3 days = 19

x + 2x + 2x - 6 = 19

5x - 6 = 19

5x = 25

x = 5