-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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