document.write( "Question 125463: Three times the larger 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 #91907 by uma(370)\"\" \"About 
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Let the larger number = x and the smaller be y.
\n" ); document.write( "Then we have x + y = 21 -------------(1)
\n" ); document.write( "Also given 3 times the larger = 4 times the smaller
\n" ); document.write( "==> 3x = 4y
\n" ); document.write( "==> 3x - 4y = 0
\n" ); document.write( " 4x + 4y = 84 [ 4 times (1)]
\n" ); document.write( "Adding the above 2 equations, 7x = 84
\n" ); document.write( "==> x = 84/7
\n" ); document.write( "==> x = 12
\n" ); document.write( "So 3x = 36
\n" ); document.write( "==> 4y = 36
\n" ); document.write( "==> y = 36/4
\n" ); document.write( "==> y = 9\r
\n" ); document.write( "\n" ); document.write( "Thus the bigger number is 12 and the smaller number is 9.\r
\n" ); document.write( "\n" ); document.write( "good luck!!!
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