document.write( "Question 112903: the sum of two numbers is 68. their differnce is 16. what are the numbers? \n" ); document.write( "
Algebra.Com's Answer #82244 by checkley71(8403) ![]() You can put this solution on YOUR website! X+Y=68 OR X=68-Y \n" ); document.write( "X-Y=16 \n" ); document.write( "NOW SUBSTITUTE (68-Y) FOR X IN THE OTHER EQUATION & SOLVE FOR Y. \n" ); document.write( "(68-Y)-Y=16 \n" ); document.write( "68-Y-Y=16 \n" ); document.write( "-2Y=16-68 \n" ); document.write( "-2Y=-52 \n" ); document.write( "Y=-52/-2 \n" ); document.write( "Y=26 ANSWER. \n" ); document.write( "X+26=68 \n" ); document.write( "X=68-26 \n" ); document.write( "X=42 ANSWER. \n" ); document.write( "PROOF \n" ); document.write( "42-26=16 \n" ); document.write( "16=16 \n" ); document.write( " |