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.
m - the number of books sold on Monday t - the number of books sold on Tuesday w - the number of books sold on Wednesday
<span>On Tuesday, she sold twice as many books as she did on Monday: t = 2m </span><span>On Wednesday, she sold 6 fewer books than she did on Tuesday: w = t - 6 </span><span>During the three days Rachel sold 19 books: m + t + w = 19
</span>t = 2m w = t - 6 = 2m - 6 m + t + w = 19 ______ Substitute t and w in the third equation: m + 2m + 2m - 6 = 19 5m - 6 = 19 5m = 19 + 6 5m = 25 m = 25 : 5 m = 5
If you want to give people something, you need to divide the number that she is sharing (75) and the number of how many people she is sharing with (4).