Question

find the value of x and y of pair of linear equation
1) x+y=9
x-y=3​

Answer 1

Answer:

x=6

y=3

Step-by-step explanation:

Adiing both equation ,we get

2x=12

x=6

Putting x=6 in first equation ,we get ,

6+y=9

y=3

Answer 2

Answer:

sol: x+y=9 ----> A

x-y=3----> B

adding equation A and equation B, we get

2x=12

x=6

put the value of x in equation A

6+y=9

y=9-6

y=3

hence x=6 and y=3