1/2k+2/3=5/21

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Solution for 1/2k+2/3=5/21 equation: 


k in (-oo:+oo)

(1/2)*k+2/3 = 5/21 // - 5/21

(1/2)*k+2/3-(5/21) = 0

(1/2)*k+2/3-5/21 = 0

1/2*k+3/7 = 0 // - 3/7

1/2*k = -3/7 // : 1/2

k = -3/7/1/2

k = -6/7

k = -6/7

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