-3m+9=12

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Solution for -3m+9=12 equation: 


m in (-oo:+oo)

9-3*m = 12 // - 12

9-3*m-12 = 0

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

-3*m = 3 // : -3

m = 3/(-3)

m = -1

m = -1

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