SOLUTION: in a 2 digit number, the number in the unit place is 4 more than the number in the tens place. if the digits of the number are reversed, the new number is 6 more than thrice the or
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Question 824195: in a 2 digit number, the number in the unit place is 4 more than the number in the tens place. if the digits of the number are reversed, the new number is 6 more than thrice the original number. find the original number Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! ---
x = units digit
y = tens digit
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x = y + 4
10x + y = 3(10y + x) + 6
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put the system of linear equations into standard form
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x - y = 4
10x + y = 30y + 3x + 6
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x - y = 4
7x - 29y = 6
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x= 5
y= 1
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answer:
the original number is: 15
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