15/7=3/k

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Solution for 15/7=3/k equation: 


D( k )

k = 0

k = 0

k = 0

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

15/7 = 3/k // - 3/k

15/7-(3/k) = 0

15/7-3*k^-1 = 0

-3*k^-1 = -15/7 // : -3

k^-1 = 5/7

-1 < 0

1/(k^1) = 5/7 // * k^1

1 = 5/7*k^1 // : 5/7

7/5 = k^1

k = 7/5

k = 7/5

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