7-7k=42

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Solution for 7-7k=42 equation: 


k in (-oo:+oo)

7-(7*k) = 42 // - 42

7-(7*k)-42 = 0

7-7*k-42 = 0

-7*k-35 = 0 // + 35

-7*k = 35 // : -7

k = 35/(-7)

k = -5

k = -5

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