Answer:
The answer is 11.
Explanation:
Use PEMDAS
P - Parenthesis
E - Exponents
M - Mulitiplication
D - Divide
A - Add
S - Subtract
So, with that you learn that you solve whatever is in the parenthesis first.
(9 - 3) = 6
Now, divide 20 by 4 which equals 5.
So now the problem is now 6 + 5 which equals 11.
The answer is 11.