-1/2z+6=15

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Solution for -1/2z+6=15 equation: 


z in (-oo:+oo)

(-1/2)*z+6 = 15 // - 15

(-1/2)*z-15+6 = 0

-1/2*z-9 = 0 // + 9

-1/2*z = 9 // : -1/2

z = 9/(-1/2)

z = -18

z = -18

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