Answer:
[tex]m = - 1[/tex]
Step-by-step explanation:
[tex]3m - (7m + 12) = 2(m - 3)[/tex]
simplifying bracket first
[tex]3m - 7m - 12 = 2m - 6[/tex]
[tex] - 4m - 12 = 2m - 6[/tex]
grouping like terms
[tex] - 4m - 2m = - 6 + 12[/tex]
[tex] - 6m = 6[/tex]
dividing through by -6
[tex] \frac{ - 6m}{ - 6} = \frac{6}{ - 6} [/tex]
[tex]m = - 1[/tex]