Answer:
7
Explanation:
Using order of operations to solve the expression:
Step 1: any terms in parenthesis
(13-8)=5
The expression becomes 5(5)-3*7+3
Step 2: any exponents
There are no exponents so the expression doesn't change.
Step 3: multiplication or division
5(5)=25
3*7=21
The expression becomes 25-21+3
Step 4: addition or subtraction
25-21+3=7