Question

jason bought 5 pens and 2 notebooks for $11.91. Martin bought 3 pens and 3 notebooks for 11.34. What is the price of each item?

Answer 1

Answer: Pen=$1.45, Notebook $2.33

Explanation:

In order to solve this equation, you must be able to use your substitution propertys. 5x+2y=11.91 and 3x+3y=11.34

Using the first equation, 2y=11.91-5x then y=(11.91-5x)/2. Then substitute.