A number consists of two digits
whose sum is 9 . If 9 is subtracted
from the number , its digits are
interchanged. Find the number.
With steps pls
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Answers
Answered by
1
Step-by-step explanation:
digits at ones place is x=4
tens place=9-x=9-4=5
Thus the number is 54
Answered by
1
Answer:
54
Step-by-step explanation:
Let the digits at ones place be x
Then the digits at tens place=9-x (sum of two digits is 9)
Therefore the number =10 (9-x)+x=90-10x+x=90-9x
Number obtained by reversing the digits=10x+9-x=9x+9
It is given if 9 is subtracted from the number.,it's digits are interchanged.
90-9x-9=9x+9
81-9x=9x+9
81-9=9x+9x
18x=72
x=72/18
x=4
digits at ones place is x=4
tens place=9-x=9-4=5
Thus the number is 54
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