5k-81=-13+3/4k

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Solution for 5k-81=-13+3/4k equation: 


k in (-oo:+oo)

5*k-81 = (3/4)*k-13 // - (3/4)*k-13

5*k-((3/4)*k)-81+13 = 0

5*k+(-3/4)*k-81+13 = 0

17/4*k-68 = 0 // + 68

17/4*k = 68 // : 17/4

k = 68/17/4

k = 16

k = 16

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