document.write( "Question 1164151: How to find the number? The units digit of a two-digit number is three more
\n" ); document.write( "than the tens digit.The number is equal to four times the sum of the digits. Find the number. (Hint: We can represent a two digit number as 10t+u.) \n" ); document.write( "

Algebra.Com's Answer #788493 by MathTherapy(10556) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( "How to find the number? The units digit of a two-digit number is three more
\n" ); document.write( "than the tens digit.The number is equal to four times the sum of the digits. Find the number. (Hint: We can represent a two digit number as 10t+u.)
\n" ); document.write( "

Let tens and units digits, be T and U, respectively
\n" );
document.write( "Then we get: U = T + 3 ------ eq (i)
\n" );
document.write( "Also, 
\n" );
document.write( "2T = T + 3 ------ Substituting 2T for U in eq (i)
\n" );
document.write( "2T - T = 3
\n" );
document.write( "T, or tens digit = 3\r
\n" );
document.write( "\n" );
document.write( "U = 3 + 3 ------ Substituting 3 for T in eq (i)
\n" );
document.write( "U, or units digit = 6
\n" );
document.write( " \n" );
document.write( "

\n" );