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Z in (-oo:+oo)
Z/8.9 = 22 // - 22
Z/8.9-22 = 0
0.11235955*Z-22 = 0 // + 22
0.11235955*Z = 22 // : 0.11235955
Z = 22/0.11235955
Z = 195.80000098
Z = 195.80000098
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