Question

http://static.k12.com/bank_packages/files/media/mathml_2d66a0b057efd68489b9bd26f7082ab90a56addc_1.gif

A.
–7

B.
–4

C.
–13

D.
–16

Answer 1

first step multiply both side by 2

Answer 2

would it be C.?

Answer 3

nope \(\Huge\ddot{\Large\frown}\)

Answer 4

O_O

Answer 5

multiply both side by 2
\(\rm\color{green}{o^\wedge\_^\wedge o}\)