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w in (-oo:+oo)
2*(6*w+8) = 88 // - 88
2*(6*w+8)-88 = 0
2*(6*w+8)-88 = 0
12*w-72 = 0
12*w-72 = 0
12*w-72 = 0 // + 72
12*w = 72 // : 12
w = 72/12
w = 6
w = 6
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