Presentation is loading. Please wait.

Presentation is loading. Please wait.

5 minutes Warm-Up Solve. 2) 1).

Similar presentations


Presentation on theme: "5 minutes Warm-Up Solve. 2) 1)."— Presentation transcript:

1 5 minutes Warm-Up Solve. 2) 1)

2 5.3 The Elimination (Addition) Method
Objectives: To solve a system of equations using the addition method

3 Example 1 (5,-2) Solve using the addition method. x – y = 7 x + y = 3

4 Example 2 (4,1) Solve using the addition method. 2x + 3y = 11

5 Practice Solve using the addition method. 1) 2)

6 Example 3 Solve using the addition method. 3x – y = 8 x + 2y = 5
write in standard form (-3) ( ) ( ) x + 2y = 5 (-3) multiply as needed 3x – y = 8 -3x – 6y = -15 addition property -7y = -7 3x - (1) = 8 y = 1 3x = 9 x = 3 (3,1)

7 Example 4 Solve using the addition method. 8x + 2y = -10
write in standard form (-2) ( ) ( ) 4x – 3y = 15 (-2) multiply as needed 8x + 2y = -10 addition property -8x + 6y = -30 8y = -40 8x + 2(-5) = -10 8x - 10 = -10 y = -5 8x = 0 x = 0 (0,-5)

8 Practice Solve using the addition method. 1) 2)


Download ppt "5 minutes Warm-Up Solve. 2) 1)."

Similar presentations


Ads by Google