7/k=-3/9

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Solution for 7/k=-3/9 equation: 


D( k )

k = 0

k = 0

k = 0

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

7/k = -3/9 // + -3/9

7/k-(-3/9) = 0

7/k+1/3 = 0

7*k^-1 = -1/3 // : 7

k^-1 = -1/21

-1 < 0

1/(k^1) = -1/21 // * k^1

1 = -1/21*k^1 // : -1/21

-21 = k^1

k = -21

k = -21

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