3m+9=42

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Solution for 3m+9=42 equation: 


m in (-oo:+oo)

3*m+9 = 42 // - 42

3*m-42+9 = 0

3*m-33 = 0 // + 33

3*m = 33 // : 3

m = 33/3

m = 11

m = 11

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