SOLUTION: The units digit of a two digit number is 3 more than the tens digit. If the sum of the digits is 16 less than one-half the number , find the number.

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Question 927405: The units digit of a two digit number is 3 more than the tens digit. If the sum of the digits is 16 less than one-half the number , find the number.
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!

It has to be one of these: 14, 25, 36, 47, 58, or 69.

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The units digit of a two digit number is 3 more than the tens digit. 
In place of those red words, write simply u.

u is 3 more than the tens digit.
In place of those red words, write simply t.

u is 3 more than t.
In place of those red words, write t+3, because to get 3 more than 
something you add 3 to it.

u is t+3
Change the red word is to =

u = t+3
That's the first equation.  Now we get the second equation:

the sum of the digits
is 16 less than one-half the number
Replace those red words by t+u

t+u is 16 less than one-half the number
Replace those red words by (10t+u).

t+u is 16 less than one-half (10t+u).
Replace that red hyphenated word by 1%2F2.

t+u is 16 less than red%281%2F2%29(10t+u).
In place of those red words, write 1%2F2(10t+u)-16, because to 
get 16 less than something you subtract 16 from it.

t+u is 1%2F2(10t+u)-16
Change the red word is to =

t+u = 1%2F2(10t+u)-16
Now we have both equations.  Now solve the system of equations:

system%28u=t%2B3%2Ct%2Bu=expr%281%2F2%29%2810t%2Bu%29-16%29.

Can you solve that system of equations? If not, you may ask how 
in the thank-you note form below.

Edwin