-2m-9=-7

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Solution for -2m-9=-7 equation: 


m in (-oo:+oo)

-2*m-9 = -7 // + 7

7-2*m-9 = 0

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

-2*m = 2 // : -2

m = 2/(-2)

m = -1

m = -1

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