document.write( "Question 337220: Solve using interval notation.\r
\n" ); document.write( "\n" ); document.write( "5 < x - 16 < 12
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Algebra.Com's Answer #241777 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
Starting with:
\n" ); document.write( "5 < x - 16 < 12
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\n" ); document.write( "Break it up into a left and right half.
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\n" ); document.write( "Left half:
\n" ); document.write( "5 < x - 16
\n" ); document.write( "adding 16 to both sides:
\n" ); document.write( "21 < x
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\n" ); document.write( "Right half:
\n" ); document.write( "x - 16 < 12
\n" ); document.write( "adding 16 to both sides:
\n" ); document.write( "x < 28
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\n" ); document.write( "Combining the two we get:
\n" ); document.write( "21 < x < 28
\n" ); document.write( "Or, in interval notation:
\n" ); document.write( "(21, 28)
\n" ); document.write( "where:
\n" ); document.write( "( or ) signifies do not include number
\n" ); document.write( "whereas
\n" ); document.write( "[ or ] signifies include number
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