The topics in this unit focus on mastering the basic concepts of algebra. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
With X Nickels and Y Pennies, some coins are worth $0.22. With Y Nickels and X Pennies they would be worth $0.14. What is X + Y?
Earned ?