SOLUTION: the sum of the digit of a two digit number is 10 the result of subtracting twice the unit digit from three times the ten digit is 15 find the number
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Question 1107271: the sum of the digit of a two digit number is 10 the result of subtracting twice the unit digit from three times the ten digit is 15 find the number Answer by josgarithmetic(39799) (Show Source):
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the sum of the digit of a two digit number is 10.
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You can make a listing of all the possible numbers using that part, or say t for TENS and u for ONEs, and say .
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the result of subtracting twice the unit digit from three times the ten digit is 15.
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Put into an equation, .
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find the number.
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You have a system of equations which should be easy to solve:
.
.