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X in (-oo:+oo)
X/5.3 = 6.7 // - 6.7
X/5.3-6.7 = 0
0.18867925*X-6.7 = 0 // + 6.7
0.18867925*X = 6.7 // : 0.18867925
X = 6.7/0.18867925
X = 35.50999911
X = 35.50999911
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