document.write( "Question 873151: The sum of the digits of a certain two digit number is 12. When you reverse its digits you increase the number by 36. what is the number? \n" ); document.write( "
Algebra.Com's Answer #526664 by indra89811(24)\"\" \"About 
You can put this solution on YOUR website!
Ten's digit=x
\n" ); document.write( "Unit's digit=y
\n" ); document.write( "x+y=12----(1)
\n" ); document.write( "Number=10x+y
\n" ); document.write( "On reversing, it becomes x+10y
\n" ); document.write( "x+10y-(10x+y)=36
\n" ); document.write( "-9x+9y=36
\n" ); document.write( "-x+y=4---(2)
\n" ); document.write( "x+y=12---(1)
\n" ); document.write( "Adding both equations,
\n" ); document.write( "2y=16
\n" ); document.write( "y=8
\n" ); document.write( "Plugging in y=8 in eq (1)
\n" ); document.write( "x+8=12
\n" ); document.write( "x=4\r
\n" ); document.write( "\n" ); document.write( "Hence the number=10*4+8=48
\n" ); document.write( "-------------------------Peace out, hun :*---------------
\n" ); document.write( "
\n" ); document.write( "
\n" );