Answer:
78= -2m-6+m
78= -m-6
78+6= -m
84= -m
m= -84 Answer( C)
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
distribute the parenthesis and simplify
78 = - 2m - 6 + m
78 = - m - 6 ( add 6 to both sides )
84 = - m ( multiply both sides by - 1 )
- 84 = m ⇒ m = - 84 → c
