document.write( "Question 277460: If a non-zero integer n is chosen such that (2-16/n) is an integer less than 6
\n" ); document.write( "Which of the following must be true of n ?\r
\n" ); document.write( "\n" ); document.write( "A -8 b -6 c -4 d -3 e -1
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Algebra.Com's Answer #201994 by vleith(2983)\"\" \"About 
You can put this solution on YOUR website!
Given
\n" ); document.write( "n is a non-zero integer and
\n" ); document.write( "\"2-%2816%2Fn%29+%3C+6\"
\n" ); document.write( "find n
\n" ); document.write( "\"2-%2816%2Fn%29+%3C+6\" collect like terms
\n" ); document.write( "\"-%2816%2Fn%29+%3C+4\"
\n" ); document.write( "\"-4%2Fn+%3C+0+\"
\n" ); document.write( "Now here is the tricky part. In order to isolate n, we need to multiply through by n. If n is positive, then the inequality sign stays 'less than'. However, if n is negative, then the inequalty changes to 'greater than'.\r
\n" ); document.write( "\n" ); document.write( "\"-4+%3C+n\" when n > 0
\n" ); document.write( "\"-4+%3E+n+\" when n < 0\r
\n" ); document.write( "\n" ); document.write( "Every one of the possible answers A through E are negative. So we need to use the second equation.\r
\n" ); document.write( "\n" ); document.write( "\"-4+%3E+n+\"
\n" ); document.write( "Which possible answers are less than -4? Only -8 and -6 (A and B)\r
\n" ); document.write( "\n" ); document.write( "BUT, your problem stated the result had to be < 6 and an integer. You can see that 16/-6 is not an integer, so -6 won't work. 16/-8 is an integer. \r
\n" ); document.write( "\n" ); document.write( "Answer is -8 (A)\r
\n" ); document.write( "\n" ); document.write( "Check that answer by plugging -8 in
\n" ); document.write( "\"2+-+%2816%2F%28-8%29%29+%3C+6\"
\n" ); document.write( "\"2+%2B+2+%3C+6\"
\n" ); document.write( "\"4+%3C+6\" which is true. So -8 works
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