The sum of a two digit number and the number obtained by reversing the order of its digits is 121. If units and ten’s digit of the number of x and y respectively, then write the linear equation representing the above statement.
Given, sum of a two digit number and the number obtained by reversing the order of its digits is 121
Number is 10y + x
Reverse of the number is 10x + y
⇒ 10y + x + 10x + y = 121
⇒ 11x + 11y = 121
⇒ x + y = 11