Question

The value of k, if x = 2, y = 1 is a solution of the equation 2x + 3y =k. is

a) 7
b) 5
c) -7
d) -5​

Answer 1

Answer:

a) 7

Step-by-step explanation:

2x + 3y = k

2(2) + 3(1) = k

4 + 3 = k

7 = k

k=7

Answer 2

Equation: 2x + 3y = k

x = 2, y = 1:

=> k = 2(2) + 3(1)

=> k = 4 + 3

=> k = 7

Option (A) 7 ✔