1.

A two digit number is such that the sum of its digit is 9.If the difference of the number obtained by reversing the digits and the original number is 9 then write down two equations in X and Y to represent above statements.

Answer»

Step-by-step explanation:

LET DIGIT at UNITS PLACE be x and tens be y

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x+y=9. 1

10x+y-10y+x

9x-9y=9



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