3z/7-9=4

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Solution for 3z/7-9=4 equation: 


z in (-oo:+oo)

(3*z)/7-9 = 4 // - 4

(3*z)/7-9-4 = 0

3/7*z-13 = 0 // + 13

3/7*z = 13 // : 3/7

z = 13/3/7

z = 91/3

z = 91/3

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