Question

*If y + x = z and x + y = m, where x and y are rational numbers, then which of the following statements is correct?*

1️⃣ m ≠ z; m and z are rational numbers
2️⃣ m = z; m and z are not rational numbers
3️⃣ m = z; m and z are rational numbers
4️⃣ m ≠ z; m and z are not rational numbers​

Answer 1

Answer:

3

Step-by-step explanation:

m = z; m and z are rational numbers

let take an example

let x=1/2 or 3 or 2 any number what you want but it's rational

let y = 1/3 or 1/2 or 8 or 5 any number what you want but it's rational

y+x and x+y always give the same rational number and its must be rational.

sum of 2 rational number always be a rational