4z/9-7=-4

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


z in (-oo:+oo)

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

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

4/9*z-3 = 0 // + 3

4/9*z = 3 // : 4/9

z = 3/4/9

z = 27/4

z = 27/4

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