Substitution Method Page 1 of 5
Accompanying Resources: Activity for Google, Study Guide, Fun Activity, Boom Cards, Assessment 

In this lesson, we'll focus on systems that have one solution. The system shown to the right consists of two linear equations: y = 2x + 3 and y = 3x + 13. You can see from the graph that the two lines cross at the point (2,7). This means that the solution to this system is (2,7). If you plug in 2 for x and 7 for y, they work in both equations. 