We are given:

First step is to get rid of fractions. We start by multiplying both sides by a.

Now we cancel a on right side and we multiply both sides by c.

After canceling c on the right side we are left with:
44
Step-by-step explanation:
The line is pointing to 44 and the small lines are counting by two
Answer:
20 painters are painting the inside
Step-by-step explanation: