1+5k+2k=57

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Solution for 1+5k+2k=57 equation: 


k in (-oo:+oo)

5*k+2*k+1 = 57 // - 57

5*k+2*k-57+1 = 0

7*k-56 = 0 // + 56

7*k = 56 // : 7

k = 56/7

k = 8

k = 8

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