4z/7-9=-7

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


z in (-oo:+oo)

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

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

4/7*z-2 = 0 // + 2

4/7*z = 2 // : 4/7

z = 2/4/7

z = 7/2

z = 7/2

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