-1+7k+2k=-55

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Solution for -1+7k+2k=-55 equation: 


k in (-oo:+oo)

7*k+2*k-1 = -55 // + 55

7*k+2*k-1+55 = 0

9*k+54 = 0 // - 54

9*k = -54 // : 9

k = -54/9

k = -6

k = -6

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