-7k+8=20-k - solution

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Solution for -7k+8=20-k equation:

k in (-oo:+oo)

8-7*k = 20-k // - 20-k

k-7*k-20+8 = 0

-6*k-12 = 0 // + 12

-6*k = 12 // : -6

k = 12/(-6)

k = -2

k = -2

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