Question

Find the value of k, if x = 3 and y = 5 is a solution of (k + 1)x - (2k + 3)y - 2 = 0.

Answer 1

Step-by-step explanation:

=> (k + 1)x - (2k + 3)y - 2 = 0

Putting the values of x = 3 and y = 5

=> (k + 1)3 - (2k + 3)5 - 2 = 0

=> 3k + 3 - 10k - 15 - 2 = 0

=> -7k - 14 = 0

=> k = -2