document.write( "Question 815901: a rope is 21 yards long. marcos cut it into two pieces so that one piece is 3 yards longer than the other. find the length of each piece \n" ); document.write( "
Algebra.Com's Answer #491297 by jim_thompson5910(35256) ![]() You can put this solution on YOUR website! x+y = 21 \n" ); document.write( "y = x+3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "--------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x+y = 21\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x+x+3 = 21\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x+3 = 21\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x = 21-3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x = 18\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 18/2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = x+3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = 9+3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = 12\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-------------------------------------------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Final Answer: \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The two pieces are 9 yards and 12 yards long. \n" ); document.write( " |