### Home > CCA > Chapter Ch4 > Lesson 4.3.1 > Problem 4-111

4-111.

Solve the systems of equations below using the method of your choice. Check your solutions, if possible.

The Substitution Method can be used to solve both of these systems.

Substitute '

' for in '.' Solve for

. What do you notice about this system?

Follow the steps in part (a), but substitute

'' for in '.'