w/2-2.1=-8.5

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Solution for w/2-2.1=-8.5 equation: 


w in (-oo:+oo)

w/2-2.1 = -8.5 // + 8.5

w/2-2.1+8.5 = 0

1/2*w+6.4 = 0 // - 6.4

1/2*w = -6.4 // : 1/2

w = -6.4/1/2

w = -12.8

w = -12.8

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