3/7k-1/3=-19/21+4/7k

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Solution for 3/7k-1/3=-19/21+4/7k equation: 


k in (-oo:+oo)

(3/7)*k-(1/3) = (4/7)*k-19/21 // - (4/7)*k-19/21

(3/7)*k-((4/7)*k)-(1/3)-(-19/21) = 0

(3/7)*k+(-4/7)*k-1/3+19/21 = 0

4/7-1/7*k = 0 // - 4/7

-1/7*k = -4/7 // : -1/7

k = -4/7/(-1/7)

k = 4

k = 4

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