Question

The solution of the following pair x+y=5; x-y=2 is:​

Answer 1

x+y=5. (1)

x-y=2. (2)

By solving 1 and 2 , we get

2x=7

x=7/2

putting value of x in equation 1

7/2+y=5

7+2y/2=5

7+2y=10

2y=10-7

2y=3

y=3/2