Systems of Equations: 1x - 1y = -4 and 2x + 1y = 7

In this Grade 8 lesson on Systems of Equations, you will practice solving problems like: "Solve the system: 1x - 1y = -4 and 2x + 1y = 7". Work through each problem carefully, use the hints if you need help, and check your answers. This builds your understanding of systems of equations step by step.