(k-8)/(4+k)=-0.2

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Solution for (k-8)/(4+k)=-0.2 equation: 


D( k )

k+4 = 0

k+4 = 0

k+4 = 0

k+4 = 0 // - 4

k = -4

k in (-oo:-4) U (-4:+oo)

(k-8)/(k+4) = -0.2 // + 0.2

(k-8)/(k+4)+0.2 = 0

(k-8)/(k+4)+(0.2*(k+4))/(k+4) = 0

0.2*(k+4)+k-8 = 0

1.2*k-7.2 = 0

(1.2*k-7.2)/(k+4) = 0

(1.2*k-7.2)/(k+4) = 0 // * k+4

1.2*k-7.2 = 0

1.2*k-7.2 = 0 // + 7.2

1.2*k = 7.2 // : 1.2

k = 7.2/1.2

k = 6

k = 6

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