8(9-z)/7=-2

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Solution for 8(9-z)/7=-2 equation: 


z in (-oo:+oo)

(8*(9-z))/7 = -2 // + 2

(8*(9-z))/7+2 = 0

(8*(9-z))/7+(2*7)/7 = 0

8*(9-z)+2*7 = 0

86-8*z = 0

(86-8*z)/7 = 0

(86-8*z)/7 = 0 // * 7

86-8*z = 0

86-8*z = 0 // - 86

-8*z = -86 // : -8

z = -86/(-8)

z = 43/4

z = 43/4

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