7k-9=19

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Solution for 7k-9=19 equation: 


k in (-oo:+oo)

7*k-9 = 19 // - 19

7*k-19-9 = 0

7*k-28 = 0 // + 28

7*k = 28 // : 7

k = 28/7

k = 4

k = 4

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