The sum of the digits of a two-digit number is 9. The number is 6 times the units digit. Find the number?
Answers
Answered by
3
Answer:
36
Step-by-step explanation:
let unit digit be y and tens digit x
x+y=9
6y=10x+1y
5y=10x
y=2x
solving both equations
y=6, x=3
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