The document describes solving a system of two equations with two unknowns, x and y, using substitution. The two equations are y=2x+12 and y=4x-26. By substituting the first equation into the second, the equations are combined into one equation in terms of x alone. Solving this new equation gives x=19. Plugging 19 back into the original equations verifies the solution is x=19, y=50.

1. Solving Systems of Equations using Substitution By: Jermaine Wilson

2. y=2x+12 y=4x-26

3. y=2x+12

4. y=4x-26

5. 2x+12=4x-26