document.write( "Question 124940: One number exceeds three times a second number by 7. The sum of twice the larger number and four times the smaller nu
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document.write( "mber is 44. What are the numbers? \n" );
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Algebra.Com's Answer #91586 by chitra(359)![]() ![]() You can put this solution on YOUR website! Let the numbers be x & y.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "According to the data given we write \"x\" in terms of \"y\". \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 3y + 7 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Given that: \r \n" ); document.write( "\n" ); document.write( "2(3y + 7) + 4y = 44\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6y + 14 + 4y = 44\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "10y = 44 - 14\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "10y = 30 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = 3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "By back substitution, we get: \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 3(y) + 7 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 3(3) + 7 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 9 + 7 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 16 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Thus the values are x = 16 & y = 3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hence, the solution. \n" ); document.write( " |