Question

If (2,5) is a solution of the equation 4x+ky=23, find k​

Answer 1

Answer:

k=3

Step-by-step explanation:

(2,5) = (x,y)

4x + ky = 23

4(2) + k(5) = 23

8 + 5k = 23

5k = 23 - 8

5k = 15

k = 15÷5

k = 3