7k-5+7k=9

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Solution for 7k-5+7k=9 equation: 


k in (-oo:+oo)

7*k+7*k-5 = 9 // - 9

7*k+7*k-9-5 = 0

14*k-14 = 0 // + 14

14*k = 14 // : 14

k = 14/14

k = 1

k = 1

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