5+5k+7k=65

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Solution for 5+5k+7k=65 equation: 


k in (-oo:+oo)

5*k+7*k+5 = 65 // - 65

5*k+7*k-65+5 = 0

12*k-60 = 0 // + 60

12*k = 60 // : 12

k = 60/12

k = 5

k = 5

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