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w in (-oo:+oo)
8-(6*w) = 26 // - 26
8-(6*w)-26 = 0
8-6*w-26 = 0
-6*w-18 = 0 // + 18
-6*w = 18 // : -6
w = 18/(-6)
w = -3
w = -3
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