document.write( "Question 337220: Solve using interval notation.\r
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document.write( "5 < x - 16 < 12 \n" );
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Algebra.Com's Answer #241777 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Starting with: \n" ); document.write( "5 < x - 16 < 12 \n" ); document.write( ". \n" ); document.write( "Break it up into a left and right half. \n" ); document.write( ". \n" ); document.write( "Left half: \n" ); document.write( "5 < x - 16 \n" ); document.write( "adding 16 to both sides: \n" ); document.write( "21 < x \n" ); document.write( ". \n" ); document.write( "Right half: \n" ); document.write( "x - 16 < 12 \n" ); document.write( "adding 16 to both sides: \n" ); document.write( "x < 28 \n" ); document.write( ". \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 \n" ); document.write( " |