Question

The sum of two digits number is 9. if 45 is added to the number to the number the digits are interchanged. fin the number.​

Answer 1

Answer:

refer to the attachment✌✌✌

hope this helps you❤❤

Answer 2

Answer:

hey,

your answer is below.

Step-by-step explanation:

Let the digit at one's place be 'x '

▪Let the digit at tens place be 'y'

♦Number formed => x + 10 y .....................(1)

➰According to the given question:

===============================

x + y = 9

y = 9 - x .......................(2)

x + 10 y + 45 = 10x + y

-9x + 9y + 45 = 0

From (2)

-9x + 9 ( 9 - x ) + 45 = 0

-9x + 81 - 9x + 45 = 0

-18x + 126 = 0

-18x = -126

=> x = 7

========

From (2)  

y = 9 - 7

y = 2

=====

▪◾Number is x + 10y  

=>> 7 + 10(2)

=>> 7 + 20

=> 27

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