Question

2x + 3y = 9

-2x + 2y = 6



The y-coordinate of the solution to the system shown is _____.

Answer 1

To find 'y' coordinate, we have to first solve the given equations.

Given: Two linear equations in two variables:-

2x + 3y = 9

-2x + 2y = 6

Add ==> 3y + 2y = 15

--> 5y = 15

--> y = 15/5 = 3

∴ y = 3

∴ The y-coordinate of the solution to the system shown is 3

Answer 2

Answer:

Y = 3  

Step-by-step explanation:

∵ 2x + 3y = 9       -----------> (1)

∵ -2x + 2y = 6      -----------> (2)

by adding (1) to (2):

0X + 5Y = 15

∴ Y = 15/5

∴ Y = 3                  -----------> (3)

by substituting by (3) in (1)

2X + 3(3) = 9

∴ 2X + 9 = 9

∴ 2X = 9-9 =0

∴ X = 0            -----------> (4)