10/5=7/k-4

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Solution for 10/5=7/k-4 equation: 


D( k )

k = 0

k = 0

k = 0

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

10/5 = 7/k-4 // - 7/k-4

10/5-(7/k)+4 = 0

10/5-7*k^-1+4 = 0

-7*k^-1 = -6 // : -7

k^-1 = 6/7

-1 < 0

1/(k^1) = 6/7 // * k^1

1 = 6/7*k^1 // : 6/7

7/6 = k^1

k = 7/6

k = 7/6

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