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w in (-oo:+oo)
3 = w/3.75 // - w/3.75
3-(w/3.75) = 0
3-0.26666667*w = 0
3-0.26666667*w = 0 // - 3
-0.26666667*w = -3 // : -0.26666667
w = -3/(-0.26666667)
w = 11.24999986
w = 11.24999986
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