8/7=12/k

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Solution for 8/7=12/k equation: 


D( k )

k = 0

k = 0

k = 0

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

8/7 = 12/k // - 12/k

8/7-(12/k) = 0

8/7-12*k^-1 = 0

-12*k^-1 = -8/7 // : -12

k^-1 = 2/21

-1 < 0

1/(k^1) = 2/21 // * k^1

1 = 2/21*k^1 // : 2/21

21/2 = k^1

k = 21/2

k = 21/2

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