3m+9=30

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Solution for 3m+9=30 equation: 


m in (-oo:+oo)

3*m+9 = 30 // - 30

3*m-30+9 = 0

3*m-21 = 0 // + 21

3*m = 21 // : 3

m = 21/3

m = 7

m = 7

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