SOLUTION: A certain two- digit number has a value that is three times the sum of its digits. the units digit is one more than three times the tens digit. Find the number
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Question 360115: A certain two- digit number has a value that is three times the sum of its digits. the units digit is one more than three times the tens digit. Find the number Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! Hi,
Let x represent the tens digit. Then the unit digit is (3x + 1)
write as we read
10x + (3x+1) = 3[x + (3x+1)]
solve for x
13x + 1 = 3x + 9x + 3
x = 2 the tens digit
(3x+1) = 7 which is the units digit
checking our answer
27 = 3*(2+7) = 27
