-2+4w+7w=86

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Solution for -2+4w+7w=86 equation: 


w in (-oo:+oo)

4*w+7*w-2 = 86 // - 86

4*w+7*w-86-2 = 0

11*w-88 = 0 // + 88

11*w = 88 // : 11

w = 88/11

w = 8

w = 8

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