m/-2+7=21

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Solution for m/-2+7=21 equation: 


m in (-oo:+oo)

m/(-2)+7 = 21 // - 21

m/(-2)-21+7 = 0

-1/2*m-14 = 0 // + 14

-1/2*m = 14 // : -1/2

m = 14/(-1/2)

m = -28

m = -28

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