document.write( "Question 829419: Rosa is 14 years older than Amy. Three years ago, she was 3 times as old as Amy. How old is each girl now? \n" ); document.write( "
Algebra.Com's Answer #499838 by rm29924(97)![]() ![]() You can put this solution on YOUR website! Let Amy's current age = X \n" ); document.write( "Rosa's current age = X + 14\r \n" ); document.write( "\n" ); document.write( "Amy's age three years ago = X - 3 \n" ); document.write( "Rosa's age three years ago = 3(X-3)\r \n" ); document.write( "\n" ); document.write( "Rosa's current age minus three should equal Rosa's age three years ago \n" ); document.write( "X + 14 - 3=3(X-3) \n" ); document.write( "X+11=3X-9 \n" ); document.write( "x+20=3x \n" ); document.write( "20=2x \n" ); document.write( "x=10\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Amy's current age is 10 years old \n" ); document.write( "Rosa's current age is 24 years old\r \n" ); document.write( "\n" ); document.write( "check answer: \n" ); document.write( "10+14-3=3(10-3) \n" ); document.write( "24-3=30-9 \n" ); document.write( "21=21\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |