4/7=7k

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Solution for 4/7=7k equation: 


k in (-oo:+oo)

4/7 = 7*k // - 7*k

4/7-(7*k) = 0

4/7-7*k = 0

4/7-7*k = 0 // - 4/7

-7*k = -4/7 // : -7

k = -4/7/(-7)

k = 4/49

k = 4/49

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