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x in (-oo:+oo)
x-((4.5*(x-0.75))/100) = 0
x-0.045*(x-0.75) = 0
x-0.045*(x-0.75) = 0
0.955*x+0.03375 = 0
0.955*x+0.03375 = 0
0.955*x+0.03375 = 0 // - 0.03375
0.955*x = -0.03375 // : 0.955
x = -0.03375/0.955
x = -0.03534031
x = -0.03534031
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