56/f=-7

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Solution for 56/f=-7 equation: 


D( f )

f = 0

f = 0

f = 0

f in (-oo:0) U (0:+oo)

56/f = -7 // + 7

56/f+7 = 0

56*f^-1 = -7 // : 56

f^-1 = -1/8

-1 < 0

1/(f^1) = -1/8 // * f^1

1 = -1/8*f^1 // : -1/8

-8 = f^1

f = -8

f = -8

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