Expression 1: negative 4 less than "x" plus "y" plus "z" less than 4 left brace, negative 12 less than "x" plus "y" minus 5 "z" less than 12 , right brace left brace, negative 12 less than "x" minus 5 "y" plus "z" less than 12 , right brace left brace, negative 12 less than 5 "x" minus "y" minus "z" less than 12 , right brace−4<x+y+z<4−12<x+y−5z<12−12<x−5y+z<12−12<5x−y−z<12
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Expression 2: negative 6 less than "x" minus 2 "y" minus 2 "z" less than 6 left brace, negative 6 less than 2 "x" minus "y" plus 2 "z" less than 6 , right brace left brace, negative 6 less than 2 "x" plus 2 "y" minus "z" less than 6 , right brace−6<x−2y−2z<6−6<2x−y+2z<6−6<2x+2y−z<6
