Question

Express the following
statement as a linear equation
in two variables.
The sum of a two-digit
number and the number
obtained by reversing the
order of its digits is 55.
Assume the digits in ones and
tens place are 'x' and 'y'
respectively.​

Answer 1

Answer:

let the digit in ones and tens place be x and y respectively

then required number =10x+y

number obtained by reversing the order of digits

is=10y+x

ATQ

10x+y+10y+x=55

11x+11y=55

x+y=5