Question

The average of two number is xy.if one number is x the other i​

Answer 1

z = (2xy-x)

Explanation:

Let the first number be x and the other number is z.

According to question,

The average of two number is xy i.e.

`(x+z)/(2)=xy\\\\x+z=2xy\\\\z=2xy-x`

So, the value of z is (2xy-x) i.e. the other number is (2xy-x).