document.write( "Question 1030757: the sum of three consecutive numbers is 42. What are the numbers? \n" ); document.write( "
Algebra.Com's Answer #645533 by ikleyn(52795)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "the sum of three consecutive \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Answer. The three consecutive integer numbers are 13, 14 and 15.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Solution\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "Let x be the middle of the three consecutive numbers.\r\n" ); document.write( "Then the lesser of the three is (x-1), and\r\n" ); document.write( " the greater of the three is (x+1).\r\n" ); document.write( "\r\n" ); document.write( "So, our numbers are (x-1), x, and (x+1).\r\n" ); document.write( "\r\n" ); document.write( "Their sum is \r\n" ); document.write( "\r\n" ); document.write( "(x-1) + x + (x+1) = 3x,\r\n" ); document.write( "\r\n" ); document.write( "and it is equal 42:\r\n" ); document.write( "\r\n" ); document.write( "3x = 42.\r\n" ); document.write( "\r\n" ); document.write( "Hence, x = \n" ); document.write( " \n" ); document.write( " |