Question

the sum of digits of two digit number is 3. If 9 is added to the number the digits are reversed. Find the number

Pls don't do it with the method; Let it should be x and y. Can you do it with another method​

Answer 1

Answer:

2&1 are the numbers

Step-by-step explanation:

sum of two digit no.= 3 (2+1)

if we add nine in three=12 the reverse of 21

Answer 2

Let x be the tens digit
Let 6 be once digit

x+y=3
10x + y +9 = 10y + x
10x - x + y - 9y = -9
9x - 9y = -9
x - y = -1

x+y=9. x-y=-1
x=9-y. 9-y-y=-1
9-2y=-1
-2y=-10
y=5
x=4
Number is 45
45+9=54
Also 45 reversed is 54

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