document.write( "Question 158230: three times the larger of two numbers is equal to four times the smaller. The sum of the numbers is 21 (12+9). Find the numbers. \n" ); document.write( "
Algebra.Com's Answer #116604 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! X+Y=21 OR X=21-Y \n" ); document.write( "3Y=4X \n" ); document.write( "3Y=4(21-Y) \n" ); document.write( "3Y=84-4Y \n" ); document.write( "3Y+4Y=84 \n" ); document.write( "7Y=84 \n" ); document.write( "Y=84/7 \n" ); document.write( "Y=12 THE LARGER NUMBER. \n" ); document.write( "X+12=21 \n" ); document.write( "X=21-12 \n" ); document.write( "X=9 THE SMALLER NUMBER. \n" ); document.write( "PROOF: \n" ); document.write( "3*12=4*9 \n" ); document.write( "36=36\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |