Answer:
B) -4
C) -5
Explanation:
B)
So we have:

First, divide both sides by 3. The left side cancels:

Subtract 4 from both sides. The left side cancels:

Divide both sides by 2. The left side cancels:

C)
We have:

Divide both sides by 4, the left side cancels:

Subtract 5 from both sides:

Divide both sides by -2:

And we're done!