Question

The solution set of x + y = 7; x – y = 3 is

Answer 1

Answer:

x + y = 7........(1)

x - y = 3.........(2)

on adding these 2 equations

2x = 10

x = 5

put x = 5 in equation (1)

5 + y = 7

y = 2

Answer 2

Answer:

x=5,y=2

Step-by-step explanation:

x+y=7⋯(1)

x−y=3

x=y+3

Put it in (1)

y+3+y=7

2y+3=7

2y=7−3

2y=4

y=

2

4

=2

Put y=2 in x+y=7 we get

x=7−y=7−2=5

∴x=5,y=2

Hope it is helpful