Math, asked by Priyam6955, 1 year ago

a no consists of two digit whose sum is 9.if 9 is subtracted from the number it's digit are interchanged.find the number

Answers

Answered by Jithin12

9

x + y=9
10x + y - 9 = 10y + x
9x - 9y = 9
X-y=1. ( Use in x+y=9). X=1+y

1+y+y=9
Y=4. Use in x=1+y
X=5

Therefore no. Is 54

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