#### Answer

To solve this we will need to start by first solving the items that have been enclosed by the brackets.
5*10 = 50 after this we will have to rewrite the entire problem as
7+ 50 =57

#### Work Step by Step

To solve an equations that involves a series of operations, you must follow the PEMDAS rule:
P- Do the operation inside the parentheses first.
E- Evaluate the expressions with exponents.
M - Multiply or divide from left to right, whichever comes first.
D
A - Add or subtract from left to right.
S
7 + (5 · 10) = n Do the operation inside the parentheses first.
7 + (50) = n Then, Add
57 = n Answer