Question

Find k if (-2,-2) is a solution of 2x-ky=9

Answer 1

Answer:

we know

before come x and after y

so x= -2

y=-2

2(-2)-k(-2)=9

so, -4+2k=9

9+4=2k

13=2k

k=6.5

i hope you give me thankyou

Answer 2

Answer:

6.5

Step-by-step explanation:

(x,y)

(-2,-2)

2(-2)-k(-2)=9

-4+2k=9

2k=13

k=6.5