Question

x+y=60and x-y=20 find x and y

Answer 1

We know, x+y=60 and x-y=20
So, we add this both equations
x+y=60
+(x-y)= 20 ....(y and -y will get canxelled)
2x = 80
x=40 ------eqⁿ 1
Put this in x-y=20
40-y= 20
Y = 20

Answer 2

Answer:

answer is 20 it is correct