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X in (-oo:+oo)
1-(X/3.15) = 0.05 // - 0.05
1-(X/3.15)-0.05 = 0
1-0.31746032*X-0.05 = 0
0.95-0.31746032*X = 0 // - 0.95
-0.31746032*X = -0.95 // : -0.31746032
X = -0.95/(-0.31746032)
X = 2.99249998
X = 2.99249998
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