Expression 21: negative 10 "x" minus 83 left brace, negative 7.9 3 8 less than or equal to "x" less than or equal to negative 7.3 1 , right brace−10x−83−7.938≤x≤−7.31
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Expression 22: left parenthesis, "x" plus 0 , right parenthesis squared plus left parenthesis, "y" plus 0 , right parenthesis squared equals 2x+02+y+02=2
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Expression 23: left parenthesis, "x" plus 0 , right parenthesis squared plus left parenthesis, "y" plus 6 , right parenthesis squared equals 2x+02+y+62=2
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Expression 24: left parenthesis, "x" plus 0 , right parenthesis squared plus left parenthesis, "y" plus 12 , right parenthesis squared equals 2x+02+y+122=2