Question 1107271
Make each sentence plain, using proper punctuation where needed:


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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  {{{t+u=10}}}.


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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,  {{{3t-2u=15}}}.



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 find the number.
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You have a system of equations which should be easy to solve:
{{{system(t+u=10,3t-2u=15)}}}

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