9-7m=30

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Solution for 9-7m=30 equation: 


m in (-oo:+oo)

9-(7*m) = 30 // - 30

9-(7*m)-30 = 0

9-7*m-30 = 0

-7*m-21 = 0 // + 21

-7*m = 21 // : -7

m = 21/(-7)

m = -3

m = -3

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