3m+9=-6m-9 - solution

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Solution for 3m+9=-6m-9 equation:

m in (-oo:+oo)

3*m+9 = -6*m-9 // + -6*m-9

3*m-(-6*m)+9+9 = 0

3*m+6*m+9+9 = 0

9*m+18 = 0 // - 18

9*m = -18 // : 9

m = -18/9

m = -2

m = -2

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