Question

x+y=18 and x-y=2 find tha x and y​

Answer 1

x + y = 18

x - y = 2

add LHS and RHS

2x +y -y =20

x =10

y =8

Answer 2

x+y=18____(1)

x-y=2_____(2)

Subtract 1 from 2,

x+y-(x-y)=18-2

x+y-x+y=16

2x=16

x=16/2

x=8

x+y=18

8+y=18

y=18-8

y=10