1/2w-8=-21/2

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Solution for 1/2w-8=-21/2 equation: 


w in (-oo:+oo)

(1/2)*w-8 = -21/2 // + -21/2

(1/2)*w-(-21/2)-8 = 0

(1/2)*w+21/2-8 = 0

1/2*w+5/2 = 0 // - 5/2

1/2*w = -5/2 // : 1/2

w = -5/2/1/2

w = -5

w = -5

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