Question

x + y = 20 x -y = 24​

Answer 1

Answer:

x=22,y=-2

Step-by-step explanation:

x+y=20

x-y=24

Let's add both the equation

x+y+x-y=20+24

=>2x=44

=>x=22

From this we can find y

=>22+y=20

=>y=-2

Answer 2

Answer:

x=22

y= -2

Step-by-step explanation:

x+ y=20           (1)

x- y=24           (2)

subtract (2) from (1)

x+y-x+y=20-24

2y= -4

y= -2

put value of y= -2in equation (1)

x+(-2)=20

x=20+2

x=22