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x in (-oo:+oo)
4.8/14.4 = x/15.3 // - x/15.3
4.8/14.4-(x/15.3) = 0
4.8/14.4-0.06535948*x = 0
0.33333333-0.06535948*x = 0 // - 0.33333333
-0.06535948*x = -0.33333333 // : -0.06535948
x = -0.33333333/(-0.06535948)
x = 5.09999972
x = 5.09999972
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