z/-2=10 - solution

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Solution for z/-2=10 equation:

z in (-oo:+oo)

z/(-2) = 10 // - 10

z/(-2)-10 = 0

-1/2*z-10 = 0 // + 10

-1/2*z = 10 // : -1/2

z = 10/(-1/2)

z = -20

z = -20

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