k/4-1=9

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Solution for k/4-1=9 equation: 


k in (-oo:+oo)

k/4-1 = 9 // - 9

k/4-9-1 = 0

1/4*k-10 = 0 // + 10

1/4*k = 10 // : 1/4

k = 10/1/4

k = 40

k = 40

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