A number consists of two digits whose sum is 9 If 27 subtracted from the number it's digits are reversed . find the number.
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Step-by-step explanation:
let the digits be x and y
x+y=9.....(1)
10x+y -27=10y+x
9x-9y=27
x-y=3.....(2)
by(1) and (2)
x=6 and y=3
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