Expression 1: negative 2 less than 2 "y" plus left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "z" less than 2 left brace, negative 2 less than 2 "y" minus left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "z" less than 2 , right brace left brace, negative 2 less than left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "x" plus 2 "z" less than 2 , right brace left brace, negative 2 less than left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "x" minus 2 "z" less than 2 , right brace left brace, negative 2 less than 2 "x" plus left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "y" less than 2 , right brace left brace, negative 2 less than 2 "x" minus left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "y" less than 2 , right brace left brace, 1 minus StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction less than 2 "x" plus 2 "y" plus 2 "z" less than StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction minus 1 , right brace left brace, 1 minus StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction less than 2 "x" minus 2 "y" minus 2 "z" less than StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction minus 1 , right brace left brace, 1 minus StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction less than 2 "x" minus 2 "y" plus 2 "z" less than StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction minus 1 , right brace left brace, 1 minus StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction less than 2 "x" plus 2 "y" minus 2 "z" less than StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction minus 1 , right brace left brace, 1 minus StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction less than left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "y" plus left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "z" less than StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction minus 1 , right brace left brace, 1 minus StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction less than left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "y" minus left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "z" less than StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction minus 1 , right brace left brace, 1 minus StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction less than left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "x" plus left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "z" less than StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction minus 1 , right brace left brace, 1 minus StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction less than left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "x" minus left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "z" less than StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction minus 1 , right brace left brace, 1 minus StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction less than left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "x" plus left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "y" less than StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction minus 1 , right brace left brace, 1 minus StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction less than left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "x" minus left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "y" less than StartFraction, 7 Over StartRoot, 5 , EndRoot , EndFraction minus 1 , right brace Has graph.−2<2y+1+5z<2−2<2y−1+5z<2−2<1+5x+2z<2−2<1+5x−2z<2−2<2x+1+5y<2−2<2x−1+5y<21−75<2x+2y+2z<75−11−75<2x−2y−2z<75−11−75<2x−2y+2z<75−11−75<2x+2y−2z<75−11−75<1+5y+1−5z<75−11−75<1+5y−1−5z<75−11−75<1−5x+1+5z<75−11−75<1−5x−1+5z<75−11−75<1+5x+1−5y<75−11−75<1+5x−1−5y<75−1