Download presentation

Presentation is loading. Please wait.

Published byBernard Maxwell Modified over 7 years ago

1
**Do Now (3x + y) – (2x + y) 4(2x + 3y) – (8x – y)**

Simplify each expression: (3x + y) – (2x + y) 4(2x + 3y) – (8x – y) 3(x + 4y) + 2(2x – 6y) (8x – 4y) + (-8x + 5y)

2
**7-3, 7-4 Solving Linear Systems by Elimination**

Objective: solve a system of linear equations in two variables by the Elimination method.

3
What is Elimination? Elimination : Eliminating one variable from a system of equations by (1) multiplying one or both equations by a constant, if necessary, and (2) adding the resulting equations.

4
**Solving Systems by using Elimination**

Multiply, if necessary, one or both equations by a constant so that the coefficients of one of the variables differ only in sign. Add the revised equations from Step 1. Combining like terms will eliminate one variable. Solve for the remaining variable. Substitute the value obtained in Step 2 into either of the original equations and solve for the other variable. Check the solution in each of the original equations.

5
Solve x + y = -1 x – y = 9

6
Solve x + 2y = -11 3x - 2y = -1

7
Multiply One Equation 2x – 3y = 6 4x – 5y = 8

8
Multiply One Equation 7x – 12y = x + 8y = 14

9
No Solution -4x + 8y = -12 2x – 4y = 7

Similar presentations

© 2023 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google