Question

Help Is really needed! I know I am reposting questions, but I'm really stuck and I need help.

Answer 1

1. Which of the following equations could be the result of using the comparison method to solve the system shown?
x + y = 5

2x + y = 7

2. For the following system, use the second equation to make a substitution for y in the first equation.

2x + y = 6

y = 3x + 4

What is the resulting equation?

3. Solve the following system of equations by the substitution method.

10x + 10y = 1

x = y - 3

What is the value of y?

4.Which of the following would not be the result of a substitution in the following system?

2x + y = 7

y - x = 1

5.Solve the following system of equations by the substitution method.

x - y = 0

x - y - 2 = 0

What is the solution set?

6. Solve the following system of equations by the substitution method.

8x = 2y + 5

3x = y + 7

What is the solution set?

7.Based on the lesson, which of the following would be the best approach for solving this system by substitution?

5x = y + 6

2x - 3y = 4

8.Which of the following equations could be the result of using the comparison method to solve the system shown?

x + 2y = 6

x - 4y = 8

9. Solve the following system of equations.

2x + y = 3

x = 2y - 1

10. For the following system, use the second equation to make a substitution for y in the first equation.

3x + y = 1

y + 4 = 5x

What is the resulting equation?

11. For the following system, use the second equation to make a substitution for x in the first equation.

x + 5y - 10 = 0

x = 2y - 8

What is the resulting equation in simplest form?

12. For the following system, use the second equation to make a substitution for x in the first equation.

3x + 2y = 7

x - y + 3 = 0

What is the resulting equation?

13. Solve the following system by the comparison method.

2p + q = 1

9p + 3q + 3 = 0

What is the solution set?

14.Which of the following equations could be the result of using the comparison method to solve the system shown?

x - 4y - 1 = 0

x + 5y - 4 = 0

15.Solve the following system of equations.

3x + 2y - 5 = 0

x = y + 10