Math, asked by avi200511, 1 year ago

the sum of a two digit number is 9 .The number obtained by interchanging the digits is 9 less than the trice the original number . Find the number

Answers

Answered by jainakshat092

0

10x+y=9
10y+x=3(10x+y)-9

avi200511: pls use single variable

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