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x in (-oo:+oo)
-4.1/(-2.3) = x/5.2 // - x/5.2
-(x/5.2)-4.1/(-2.3) = 0
-0.19230769*x-4.1/(-2.3) = 0
1.7826087-0.19230769*x = 0 // - 1.7826087
-0.19230769*x = -1.7826087 // : -0.19230769
x = -1.7826087/(-0.19230769)
x = 9.26956535
x = 9.26956535
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