-1/2m-7=3

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Solution for -1/2m-7=3 equation: 


m in (-oo:+oo)

(-1/2)*m-7 = 3 // - 3

(-1/2)*m-7-3 = 0

-1/2*m-10 = 0 // + 10

-1/2*m = 10 // : -1/2

m = 10/(-1/2)

m = -20

m = -20

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