the sum of the digit of a 2 digit no is 13. The no formed by interchanging the digits is 45 more than the original no. Find the original no.
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first number the 10X and second number be 10y
from first conditions
10x+ 10y= 13. _ eq1
second condition
from first conditions
10x+ 10y= 13. _ eq1
second condition
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