Download presentation

Presentation is loading. Please wait.

Published byCorinne Grahame Modified about 1 year ago

1
example 1 Solution by Elimination Chapter 7.1 Solve the system 2009 PBLPathways

2
Solve the system

3
2009 PBLPathways Solve the system 1.If necessary, interchange two equations or use multiplication to make the coefficient of x in the first equation a 1. E1 E2

4
2009 PBLPathways Solve the system 2.Add a multiple of the first equation to each of the following equations so that the coefficients of x in the second and third equations become 0. -2 R1 + R2 R2

5
2009 PBLPathways Solve the system 2.Add a multiple of the first equation to each of the following equations so that the coefficients of x in the second and third equations become 0. -2 E1 + E2 E2

6
2009 PBLPathways Solve the system 2.Add a multiple of the first equation to each of the following equations so that the coefficients of x in the second and third equations become 0. -2 E1 + E2 E2

7
2009 PBLPathways Solve the system 2.Add a multiple of the first equation to each of the following equations so that the coefficients of x in the second and third equations become 0. -3 R1 + R3 R3

8
2009 PBLPathways Solve the system 2.Add a multiple of the first equation to each of the following equations so that the coefficients of x in the second and third equations become 0. -3 E1 + E3 E3

9
2009 PBLPathways Solve the system 2.Add a multiple of the first equation to each of the following equations so that the coefficients of x in the second and third equations become 0. -3 E1 + E3 E3

10
2009 PBLPathways Solve the system 2.Add a multiple of the first equation to each of the following equations so that the coefficients of x in the second and third equations become 0. -3 E1 + E3 E3

11
2009 PBLPathways Solve the system 3.Multiply (or divide) both sides of the second equation by a number that makes the coefficient of y in the second equation equal to 1. -1 R2 R2

12
2009 PBLPathways Solve the system 3.Multiply (or divide) both sides of the second equation by a number that makes the coefficient of y in the second equation equal to 1. -1 E2 E2

13
2009 PBLPathways Solve the system 3.Multiply (or divide) both sides of the second equation by a number that makes the coefficient of y in the second equation equal to 1. -1 E2 E2

14
2009 PBLPathways Solve the system 4.Add a multiple of the (new) second equation to the (new) third equation so that the coefficient of y in the newest third equation becomes 0. -4 R2 + R3 R3

15
2009 PBLPathways Solve the system 4.Add a multiple of the (new) second equation to the (new) third equation so that the coefficient of y in the newest third equation becomes 0. -4 E2 + E3 E3

16
2009 PBLPathways Solve the system 4.Add a multiple of the (new) second equation to the (new) third equation so that the coefficient of y in the newest third equation becomes 0. -4 E2 + E3 E3

17
2009 PBLPathways Solve the system 4.Add a multiple of the (new) second equation to the (new) third equation so that the coefficient of y in the newest third equation becomes 0. -4 E2 + E3 E3

18
2009 PBLPathways Solve the system 5.Multiply (or divide) both sides of the third equation by a number that makes the coefficient of z in the third equation equal to 1. This gives the solution for z in the system of equations. E3 E3

19
2009 PBLPathways Solve the system 5.Multiply (or divide) both sides of the third equation by a number that makes the coefficient of z in the third equation equal to 1. This gives the solution for z in the system of equations. E3 E3

20
2009 PBLPathways Solve the system 6.Use the solution for z to solve for y in the second equation. Then substitute values for y and z to solve for x in the first equation.

21
2009 PBLPathways Solve the system 6.Use the solution for z to solve for y in the second equation. Then substitute values for y and z to solve for x in the first equation.

22
2009 PBLPathways Solve the system 6.Use the solution for z to solve for y in the second equation. Then substitute values for y and z to solve for x in the first equation.

23
2009 PBLPathways Solve the system 6.Use the solution for z to solve for y in the second equation. Then substitute values for y and z to solve for x in the first equation.

24
2009 PBLPathways Solve the system 6.Use the solution for z to solve for y in the second equation. Then substitute values for y and z to solve for x in the first equation.

25
2009 PBLPathways Solve the system 6.Use the solution for z to solve for y in the second equation. Then substitute values for y and z to solve for x in the first equation.

26
2009 PBLPathways Solve the system 6.Use the solution for z to solve for y in the second equation. Then substitute values for y and z to solve for x in the first equation.

27
2009 PBLPathways Solve the system 6.Use the solution for z to solve for y in the second equation. Then substitute values for y and z to solve for x in the first equation.

28
2009 PBLPathways Solve the system 6.Use the solution for z to solve for y in the second equation. Then substitute values for y and z to solve for x in the first equation.

29
2009 PBLPathways Does the solution solve the system? Solve the system

Similar presentations

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google