(Z/7)-1=5

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Solution for (Z/7)-1=5 equation:


Z in (-oo:+oo)

Z/7-1 = 5 // - 5

Z/7-5-1 = 0

1/7*Z-6 = 0 // + 6

1/7*Z = 6 // : 1/7

Z = 6/1/7

Z = 42

Z = 42

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