Question

$sum of the digits of a number of two digits is 13.if 8 is subtracted from the number then the digits of the number are equal.find the original number.let the no.of two digits = 10x + y$
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Answer 1

Answer:

as a two digit no.s ten place cannot be in decimal. So one of these values must be changed

Step-by-step explanation:

10x+y-8=10x+x

x=y-8

y-x=8

thenx+y+y-x=13+8

2y = 21