Question

The sum of digit of a two-digit number is 3. If 9 is added to the number, the digits are reversed. find the number​

Answer 1

Answer:

Here's your answer

Let the number be

10x+y

ACCORDING TO QUESTION...

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

10x+y+9=10y+x

10x-x+y-10y+9=0

9x-9y=-9

9(x-y) =-9

x-y=-1......... eq(2)

From equation 1 and 2 by elimination method

x+y=9

x-y=-1

+ +

..........

2y=10

y=5

FOR x

x-y=-1

x-5=-1

x=-1+5

x= 4

SO THE NUMBER US 45 OR 54

Hope it helps ✌....