7k/3=21

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Solution for 7k/3=21 equation: 


k in (-oo:+oo)

(7*k)/3 = 21 // - 21

(7*k)/3-21 = 0

7/3*k-21 = 0 // + 21

7/3*k = 21 // : 7/3

k = 21/7/3

k = 9

k = 9

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