8=-4k+k+7

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Solution for 8=-4k+k+7 equation: 


k in (-oo:+oo)

8 = k-4*k+7 // - k-4*k+7

8-(-4*k)-k-7 = 0

4*k-k-7+8 = 0

3*k+1 = 0 // - 1

3*k = -1 // : 3

k = -1/3

k = -1/3

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