Question

Simultaneous Equations of elimination method solve for 2x+5y=4 and 2x-2y=18

Answer 1

Answer:

X, Y=7,-2

Step by step Explanation:

Method 1

finding the value by Elimination

2x+5y=4

2x-2y=18

5y=4

- 2y=18

- 7y=14

• Same expression will be eliminate

• same signs will be substrate each other different signs will be add together

To find the value of X substitute y value in a equation

2X-2(-2)=18

2x+4 =18-4

X =14/2

x =7

Method 2

Finding the value by substitution