Find the inverse relation `R^(-1)` in the following case: `R :{(x , y): x , y in N ,\ x+2y=8}`

Explanation

Given,`R:{(x,y):x,y∈N, x+2y=8}`

On solving `x+2y=8` we get,

`x=8-2y`

on putting y=1 we get,x=6

on putting y=2 we get,x=4

on putting y=3 we get,x=2

Thus` R={(6,1),(4,2),(2,3)}`