z/9-1=7

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Solution for z/9-1=7 equation: 


z in (-oo:+oo)

z/9-1 = 7 // - 7

z/9-7-1 = 0

1/9*z-8 = 0 // + 8

1/9*z = 8 // : 1/9

z = 8/1/9

z = 72

z = 72

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