z/2-z=3

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Solution for z/2-z=3 equation: 


z in (-oo:+oo)

z/2-z = 3 // - 3

z/2-z-3 = 0

-1/2*z-3 = 0 // + 3

-1/2*z = 3 // : -1/2

z = 3/(-1/2)

z = -6

z = -6

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