3m+9=9m-12

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Solution for 3m+9=9m-12 equation:


3m + 9 = 9m - 12

We simplify the equation to the form, which is simple to understand 
3m+9=9m-12

We move all terms containing m to the left and all other terms to the right. 
+3m-9m=-12-9

We simplify left and right side of the equation. 
-6m=-21

We divide both sides of the equation by -6 to get m. 
m=3.5

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