2-2k=20

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Solution for 2-2k=20 equation: 


k in (-oo:+oo)

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

2-(2*k)-20 = 0

2-2*k-20 = 0

-2*k-18 = 0 // + 18

-2*k = 18 // : -2

k = 18/(-2)

k = -9

k = -9

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