Answer: m = -6
Step-by-step explanation:
To find the solution you combine like terms across the equal sign of the equation, taking into account that the sign changes as you move the term from one side to the other:
[tex]m+2m-6=-12+2m\\m+2m-2m=-12+6\\[/tex]
Then, you simply add and substract:
[tex]m=-6[/tex]
