Question

the sum of the digit of a two digit number is 9 on reversing the digit the new number obtained obtained is 45 more than the original number find the number​

Answer 1

Answer:

X is 7 and y is 12 the right answer thanks bro

Step-by-step explanation:

let the tens digital be x and ones be y

x+y =9. ------------ (1)

reversing the no. 10y + x.

the original no. is 10x+y.

10y+x = 10x+y + 45

9x - 9y = 45

9 (x - y ) = 45

x - y = 5 ---------------(2)

adding eq. (1)&(2)

x+y+x - y = 5 + 9

2x=14

x=7

y=12