-3=m/7

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Solution for -3=m/7 equation: 


m in (-oo:+oo)

-3 = m/7 // - m/7

-(m/7)-3 = 0

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

-1/7*m = 3 // : -1/7

m = 3/(-1/7)

m = -21

m = -21

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