document.write( "Question 265159: sixteen more than 5 times the units' didgit of a two-digit number is twice the tens' digit. The sum of the digits is 8. What is the number? \n" ); document.write( "
Algebra.Com's Answer #195014 by stanbon(75887)\"\" \"About 
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Sixteen more than 5 times the units' digit of a two-digit number is twice the tens' digit.
\n" ); document.write( "The sum of the digits is 8.
\n" ); document.write( "What is the number?
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\n" ); document.write( "Equations:
\n" ); document.write( "Let the number be 10t+u
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\n" ); document.write( "5u + 16 = 2t
\n" ); document.write( "t + u = 8
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\n" ); document.write( "Substitute for \"t\" and solve for \"u\":
\n" ); document.write( "5u + 16 = 2(8-u)
\n" ); document.write( "5u + 16 = 16 - 2u
\n" ); document.write( "7u = 0
\n" ); document.write( "u = 0
\n" ); document.write( "---
\n" ); document.write( "Since t+u = 8, t = 8
\n" ); document.write( "-------------------------
\n" ); document.write( "Ans: 10t+u = 80
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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