-7-7k=-21

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Solution for -7-7k=-21 equation: 


k in (-oo:+oo)

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

21-(7*k)-7 = 0

21-7*k-7 = 0

14-7*k = 0 // - 14

-7*k = -14 // : -7

k = -14/(-7)

k = 2

k = 2

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