### Home > CCA > Chapter 4 > 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. Homework Help ✎

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

Substitute '7 − 2

*x*' for*y*in '2*x*+*y*= 10.'2

*x*+ (7 − 2*x*) = 10Solve for

*x*. What do you notice about this system?7 ≠ 10

Follow the steps in part (a), but substitute

'3*y*− 1' for*x*in '4*x*− 2*y*= 10.'