Answer:
b, d, a, a
Explanation:
1. 4x = 16
Divide both sides by 4.
x = 4 -> choice b
2. To solve, you need to divide 6 to get a alone.
Division -> choice d
3. To solve, add 8.83 to both sides.
Addition -> choice a
4. First step is to add 9 to both sides to get 6y alone.
Add 9 -> choice a