Question

If 20x+30y=10 and 18x+32 y= 20 then find x - y =_____​

Answer 1

Answer:

20x + 30y = 10

- 18 x+ 32y =20

- -. -

2x-2y= -10.

2 se divide karke

x-y= -5

answer is x-y= -5