document.write( "Question 927136: The sum of two numbers is 18.The larger number is three times the smaller. \n" ); document.write( "
Algebra.Com's Answer #562703 by samdom4peace(3)\"\" \"About 
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Let the two numbers be x and y
\n" ); document.write( "Let the smaller number = x
\n" ); document.write( "Let the larger number = y\r
\n" ); document.write( "\n" ); document.write( "Sum of two numbers = 18
\n" ); document.write( "x + y = 18 ...eqn. (1)\r
\n" ); document.write( "\n" ); document.write( "The larger number is three times the smaller.
\n" ); document.write( "y = 3x ... eqn. (2)\r
\n" ); document.write( "\n" ); document.write( "Subst. 3x for y in eqn. (1)
\n" ); document.write( "x + 3x = 18
\n" ); document.write( "4x = 18
\n" ); document.write( "x = 4.5\r
\n" ); document.write( "\n" ); document.write( "Subst. 4.5 for x in eqn. (2)
\n" ); document.write( "y = 3(4.5)
\n" ); document.write( "y = 13.5\r
\n" ); document.write( "\n" ); document.write( "(x, y) = (4.5, 13.5)
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