Question

Chase and Carly worked together to create thank you notes for teacher appreciation week.

Together, they made a total of 52 notes. If Carly made 12 fewer thank you notes than Chase, how many thank you notes did Carly make?

Answer 1

Explanation:

x = number of notes by Chase

y = number of notes by Carly

x + y = 52

x = y + 12

to solve we simply use the identity given by equation 2, by putting it into equation 1 :

(y + 12) + y = 52

2y + 12 = 52

2y = 40

y = 20

Carly made 20 thank-you-notes.