please help anyone will mark BRAINILEST !!!!!!!!!!!!!!!!!!!!!!!!!!

if 2m - 6 = 8m then 3m = ?

A. 3
B. -1
C. -3
D. -6

please help anyone will mark BRAINILEST if 2m 6 8m then 3m A 3 B 1 C 3 D 6 class=