the sum of the digits of a 2 digit . 14 if the digit are reverse the number increases by 36 find the number
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Step-by-step explanation:
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Answered by
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Answer:
The Original Number is 59
Step-by-step explanation:
Let x = the 10's digit
Let y = the units
10x + y = the original two digit number
The sum of the digits of a two-digit number is 14.
x + y = 14
If the digits are reversed, the number is 36 more than the original number.
Rev no. = orig no. + 36
10y + x = 10x + y + 36
10y - y = 10x - x + 36
9y = 9x + 36
simplify, divide by 9
y = x + 4
In the sum equation replace y with (x+4)
x + x + 4 = 14
2x = 14 - 4
2x = 10
x = 5
So, obviously y = 9
59 is the original number
Check solution in the statement:
"If the digits are reversed, the number is 36 more than the original number."
95= 59 + 36
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