Question

If (2,5)is a solution 3x+ky =31 what is the value of k​

Answer 1

3(2)+k(5)= 31

6+5k =31

5k=31/6

k=31/30

Answer 2

Answer:

5

Step-by-step explanation:

Step1: Let x=2, y=5, k=?

Step2: (3x2) + (kx5) =31 ,put value of x and y here

Step3: 6 + k5 = 31

Step: k5 = 31 - 6

Step: k5 = 25

Step: k = 25/5 =5