Question

solve x+y=10and x-y=12​

Answer 1

Answer:

x+y=10 -(1)

x-y=12 -(2)

adding eq.(1)&(2)

2x=22

x=11

Put value of x in eq. (1)

11+y=10

y=10-11

y=-1

Answer 2

Step-by-step explanation:

x+y=10 -eq1

x-y=12. -eq2

2x=22

x=11.

Sub x value in equal 1or2,

11+y=10

y=10-11

y=-1