Question

The sum of the digits of a two-digit number is 10. If 36 is subtracted from the number, the digits
interchange their place. Find the number by one variable.
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Answer 1

Answer:

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Step-by-step explanation:

let the digit a one's place be x and tens be y

x+y=10

y=10-x............[1]

no; 10y+x  

reverse: 10x+y

10y+x-36=10x+y

9y-9x=36

y-x=4

from eq[1]

10-x-x=4

6=2x

x=3  

and y=7

no is 73  

Answer 2

Step-by-step explanation:

attached the explanation

as sum is 10 no will be 10*(10-x)+ x

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