x/-4=20

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Solution for x/-4=20 equation: 


x in (-oo:+oo)

x/(-4) = 20 // - 20

x/(-4)-20 = 0

-1/4*x-20 = 0 // + 20

-1/4*x = 20 // : -1/4

x = 20/(-1/4)

x = -80

x = -80

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