4z/7-1=-4

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Solution for 4z/7-1=-4 equation: 


z in (-oo:+oo)

(4*z)/7-1 = -4 // + 4

(4*z)/7-1+4 = 0

4/7*z+3 = 0 // - 3

4/7*z = -3 // : 4/7

z = -3/4/7

z = -21/4

z = -21/4

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