HELP PLEASE 3. To combine the equations and solve for one of the variables, you need to eliminate the other variable. How can you change one equation so that one variable is eliminated when the two equations are added? Explain and write the new equation. (3 points: 2 for your explanation and 1 for the equation)
Substituting this value of x in eq. 1, we get,

4. Combine the two equations to eliminate one of the variables, and then solve for the other. (3 points: 1 for eliminating one variable, 1 for the answer, and 1 for showing your work)

5. Solve for the other variable. (2 points: 1 point for the answer, 1 for showing the work)

6. Prove that your solutions are correct by substituting the values back into the original equations and verifying the answers. (2 points)