9/(k-7)=6/k

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Solution for 9/(k-7)=6/k equation: 


D( k )

k-7 = 0

k = 0

k-7 = 0

k-7 = 0

k-7 = 0 // + 7

k = 7

k = 0

k = 0

k in (-oo:0) U (0:7) U (7:+oo)

9/(k-7) = 6/k // - 6/k

9/(k-7)-(6/k) = 0

9/(k-7)-6*k^-1 = 0

9/(k-7)-6/k = 0

(9*k)/(k*(k-7))+(-6*(k-7))/(k*(k-7)) = 0

9*k-6*(k-7) = 0

3*k+42 = 0

(3*k+42)/(k*(k-7)) = 0

(3*k+42)/(k*(k-7)) = 0 // * k*(k-7)

3*k+42 = 0

3*k+42 = 0 // - 42

3*k = -42 // : 3

k = -42/3

k = -14

k = -14

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