20=2k+k+2

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Solution for 20=2k+k+2 equation: 


k in (-oo:+oo)

20 = 2*k+k+2 // - 2*k+k+2

20-(2*k)-k-2 = 0

20-2*k-k-2 = 0

18-3*k = 0 // - 18

-3*k = -18 // : -3

k = -18/(-3)

k = 6

k = 6

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