SOLUTION: A certain two digit number is 4 more than 10 times the tens digit. The original number is 12 less than twice the number with the digits reversed. Find the original number.

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Question 1017985: A certain two digit number is 4 more than 10 times the tens digit. The original number is 12 less than twice the number with the digits reversed. Find the original number.
Answer by JoelSchwartz(130) About Me  (Show Source):
You can put this solution on YOUR website!
x=units digit
y=tens digit
10y+x=4+10y
x=4
10y+4=2(10x+y)-12
10y+4=20x+2y-12
8y+4=20x-12
8y+4=80-12
8y=68-4
8y=64
y=8
The orginal number is 84