-z/2=7

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Solution for -z/2=7 equation: 


z in (-oo:+oo)

-z/2 = 7 // - 7

-z/2-7 = 0

-1/2*z-7 = 0 // + 7

-1/2*z = 7 // : -1/2

z = 7/(-1/2)

z = -14

z = -14

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