Two coworkers picked up some writing instruments at the office supply store. Andy selected 7 boxes of pencils and 5 boxes of ballpoint pens, paying $34. Next, Eliana spent $48 on 8 boxes of pencils and 8 boxes of ballpoint pens. How much does a box of each cost?

Answer 1

7p+5b = 34
8p+8b = 48
Now solve as usual

Answer 2

Two coworkers picked up some writing instruments at the office supply store. Julian selected 1 box of pencils and 1 box of ballpoint pens, paying $6. Next, Aubrey spent $16 on 1 box of pencils and 3 boxes of ballpoint pens. How much does a box of each cost?

Answer 3

2 and 4