42=-7/2w

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Solution for 42=-7/2w equation: 


w in (-oo:+oo)

42 = (-7/2)*w // - (-7/2)*w

42-((-7/2)*w) = 0

(7/2)*w+42 = 0

7/2*w+42 = 0 // - 42

7/2*w = -42 // : 7/2

w = -42/7/2

w = -12

w = -12

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