Question

if 2x + y = 5 find the value of y​

Answer 1

Step-by-step explanation:

Correct option is

B

6

Given that,

2x−y=4....(1)

x+y=5....(2)

Adding equation (1) and (2) we get, 3x=9

x=3

and y=2

Value of xy=3×2=6.