document.write( "Question 61383: The sum of two numbers is 40. Their difference is 8. Find the two numbers. How would I set this up to solve it? \n" ); document.write( "
Algebra.Com's Answer #42252 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The sum of two numbers is 40. Their difference is 8. Find the two numbers. How would I set this up to solve it? \n" ); document.write( "------------ \n" ); document.write( "Let the numbers be \"x\" and \"y\". \n" ); document.write( "EQUATION: \n" ); document.write( "x+y=40 \n" ); document.write( "x-y=8 \n" ); document.write( "Add the two equations to get: \n" ); document.write( "2x=48 \n" ); document.write( "x=24 \n" ); document.write( "Substitute to solve for y as follows: \n" ); document.write( "24+y=40 \n" ); document.write( "y=16 \n" ); document.write( "Check in other equation, as follows: \n" ); document.write( "24-18=8 \n" ); document.write( "8=8 \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |