A number is 27 more than the number obtained by reversing its digits. If its unit's and tens digit are x and y respectively, write the linear equation representing the above statement.

Explanation

"Solution
Let the number's unit's digit is `'x'` and ten's digit is `'y'`
Then thenumber=
`'x+10y'`
If we reverse the number's digit then the number =`'y+10x'`
Given that the number is `'27'` more than the reversed number
So, `'(x+10y)−(y+10x)=27'`

Or '`x+10y−y−10x=27`'

Or '`9y−9x−27=0`'

Or `y−x−3=0`.