w/7+2=-1

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Solution for w/7+2=-1 equation: 


w in (-oo:+oo)

w/7+2 = -1 // + 1

w/7+1+2 = 0

1/7*w+3 = 0 // - 3

1/7*w = -3 // : 1/7

w = -3/1/7

w = -21

w = -21

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