-3=x/(-7)

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Solution for -3=x/(-7) equation: 


x in (-oo:+oo)

-3 = x/(-7) // - x/(-7)

-(x/(-7))-3 = 0

1/7*x-3 = 0 // + 3

1/7*x = 3 // : 1/7

x = 3/1/7

x = 21

x = 21

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