document.write( "Question 81569: please help.\r
\n" ); document.write( "\n" ); document.write( "The sum if two numbers is 35. Their difference is 13. what are the two numbers? \n" ); document.write( "
Algebra.Com's Answer #58406 by tutorcecilia(2152)\"\" \"About 
You can put this solution on YOUR website!
x=one number
\n" ); document.write( "y=the other number
\n" ); document.write( "sum=to add
\n" ); document.write( "difference=to subtract
\n" ); document.write( ".
\n" ); document.write( "x+y=35
\n" ); document.write( "x-y=12
\n" ); document.write( ".
\n" ); document.write( "One method you can use is subtraction;
\n" ); document.write( "x+y=35
\n" ); document.write( "x-y=12
\n" ); document.write( "_______
\n" ); document.write( "2x-0y=47
\n" ); document.write( ".
\n" ); document.write( "2x=47
\n" ); document.write( "x=47/2
\n" ); document.write( ".
\n" ); document.write( "So, x=47/2=23.5
\n" ); document.write( "x+y=35
\n" ); document.write( "23.5+y=35
\n" ); document.write( "y=35-23.5
\n" ); document.write( "y=11.5
\n" ); document.write( "checking: 23.5+11.5=35
\n" ); document.write( ".
\n" ); document.write( "Plug the values into the second equation:
\n" ); document.write( "x-y=12
\n" ); document.write( "23.5-11.5=12 [checks out]\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );