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w in (-oo:+oo)
5.5 = w/2.2 // - w/2.2
5.5-(w/2.2) = 0
5.5-0.45454545*w = 0
5.5-0.45454545*w = 0 // - 5.5
-0.45454545*w = -5.5 // : -0.45454545
w = -5.5/(-0.45454545)
w = 12.10000012
w = 12.10000012
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