document.write( "Question 92661: \n" ); document.write( "
Algebra.Com's Answer #67457 by FadelSalem(12) You can put this solution on YOUR website! One number is 8 less than another. If 9 times the smaller number minus 4 times the larger number is 8, find the two numbers\r \n" ); document.write( "\n" ); document.write( "Let the first number be x and the second be y then: \n" ); document.write( "x < y by 8 ..............> \n" ); document.write( " y - x = 8 (1) \n" ); document.write( "9x - 4y = 8 (2)\r \n" ); document.write( "\n" ); document.write( "9y - 9x = 72 (1) \n" ); document.write( "9x - 4y = 8 (2)\r \n" ); document.write( "\n" ); document.write( "by addition: 5y = 80 \n" ); document.write( "divide by 5: y = 16 \n" ); document.write( "substitute in eq (1) we get: \n" ); document.write( "16 - x = 8 So, x = 16 - 8 = 8 \n" ); document.write( "the two numbers are : 8 and 16\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |