document.write( "Question 212344: what 2 digit number is equal to three times the product of its digits \n" ); document.write( "
Algebra.Com's Answer #160375 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
x = the 10's digit; y = units; 10x + y = the number
\n" ); document.write( ":
\n" ); document.write( "what 2 digit number is equal to three times the product of its digits
\n" ); document.write( "10x + y = 3(xy)
\n" ); document.write( ":
\n" ); document.write( "10x = 3xy - y
\n" ); document.write( ":
\n" ); document.write( "10x = y(3x - 1)
\n" ); document.write( ":
\n" ); document.write( "y = \"%2810x%29%2F%28%283x-1%29%29\"
\n" ); document.write( ";
\n" ); document.write( "Substitute for x and find an integer value for y
\n" ); document.write( ":
\n" ); document.write( "Only 2 solutions
\n" ); document.write( "x = 1, y = 5; 15 is the number
\n" ); document.write( "and
\n" ); document.write( "x = 2, y = 4; 24 is the number
\n" ); document.write( "
\n" );