Question

for what value of k the linear equation 4x+ky=10 has x=1 and y=2 as its solution if x=-2 then find the value of y​

Answer 1

Answer:

4x+ky =10

(x=1 and y=2)

4+2k =10

2k=10-2

2k =8

k=4

Step-by-step explanation:

when its solution is x= -2

4x+ky =10

-8 +4y =10

4y =18

y =9/2