Question

5

j
+
16
−
1
2
(
−
9
j
−
4
)
=
1
2
j

Answer 1

I believe the question says "5j + 16 - 12(-9j - 4) - 12j" I hope I'm correct because I have almost no idea what you typed.

If you did type "5j + 16 - 12(-9j - 4) - 12j" then your answer would be 133j + 52 I believe. You never put how you would like your problem to be solved, so I simplified.

Explanation:

Hope this helps.