x/-21=7

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Solution for x/-21=7 equation: 


x in (-oo:+oo)

x/(-21) = 7 // - 7

x/(-21)-7 = 0

-1/21*x-7 = 0 // + 7

-1/21*x = 7 // : -1/21

x = 7/(-1/21)

x = -147

x = -147

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