2/5k+5=21/5

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


k in (-oo:+oo)

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

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

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

2/5*k+4/5 = 0 // - 4/5

2/5*k = -4/5 // : 2/5

k = -4/5/2/5

k = -2

k = -2

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