document.write( "Question 430525: Three times the larger of two numbers is equal to four times the smaller. The sum of the numbers is 21. Find the numbers. \n" ); document.write( "
Algebra.Com's Answer #299018 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! Let X and Y be our numbers. Then:\r \n" ); document.write( "\n" ); document.write( "3X=4Y and X+Y=21.\r \n" ); document.write( "\n" ); document.write( "3X+3Y=63\r \n" ); document.write( "\n" ); document.write( "We substitute for 3X:\r \n" ); document.write( "\n" ); document.write( "4Y+3Y=63 \n" ); document.write( "7Y=63 \n" ); document.write( "Y=9 \n" ); document.write( "X=21-Y=21-9=12. \n" ); document.write( " |