Question

if X y and z are rational number then which is not true
1)x+y=y+x
2)0+x=x+0
3)x-y=y-x
4)(x+y)+z=x+(y+z)​

Answer 1

Answer:

3) x - y = y - x

Step-by-step explanation:

let x be 3 and y be 2

L.H.S

x - y

3 - 2

1

R.H.S

y - x

2 - 3

- 1

Thus, L.H.S is not equal to R.H.S proved

Answer 2

Thanks for the question it is so easy