document.write( "Question 857277: The sum of two numbers is 18. The sum of 3 times the smaller number and 4 times the larger number is 56. What are the numbers?
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Algebra.Com's Answer #516461 by Menjax(62)![]() ![]() ![]() You can put this solution on YOUR website! let y be larger number and x smaller number \n" ); document.write( "x+y=18 \n" ); document.write( "3x + 4y = 56\r \n" ); document.write( "\n" ); document.write( "sub y=18-x into 3x + 4y = 56 \n" ); document.write( "3x + 4(18-x) = 56 \n" ); document.write( "3x + 72-4x = 56 \n" ); document.write( "-x + 72 = 56 \n" ); document.write( "-x = 56 -72 = -16 \n" ); document.write( "x=16 \n" ); document.write( "16+y=18 \n" ); document.write( "y=2\r \n" ); document.write( "\n" ); document.write( "actually x>y so I think the question should have been three times the larger number 4 times the smaller \n" ); document.write( " |