Question

78 = -2(m + 3) + m

a)-42
b)-72
c)-84
d)-28

Answer 1

c

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

Answer 2

78= -2m-6+m

78= -m-6

78+6= -m

84= -m

m= -84 Answer( C)

Explanation: