Question

Sum of the digits of a two digit number is 9 and the number itself is equal to twice the sum of its
digit. Find the number​

Answer 1

Answer:

18 is the number

Step-by-step explanation:

let the digits be x and y

so we have

x+y=9

and 2(x+y)=the number

so we have x+y=9

2(9)=18=the number

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