Directions: In a symbolic mathematical system, standard arithmetic operators are redefined as follows:

+ represents division (÷)
- represents multiplication (×)
× represents subtraction (-)
÷ represents addition (+)

Based on these redefined rules, calculate the value of the following expression:

(18 + 3) - 4 ÷ (15 × 7)

The correct answer is 32.

Step 1: Understand the given operator redefinitions
According to the problem statements, standard arithmetic operators are redefined as follows:
+ represents division (÷)
- represents multiplication (×)
× represents subtraction (-)
÷ represents addition (+)

Step 2: Substitute the redefined operators into the expression
The given expression is:
$(18+3)-4÷(15\times 7)$
Replacing each symbol according to the redefined rules:
$(18÷3)\times 4+(15-7)$

Step 3: Evaluate the expression using standard order of operations (BODMAS/PEMDAS)

1. Solve inside the brackets first:
$18÷3=6$
$15-7=8$

Substituting these simplified values back into the expression gives:
$6\times 4+8$

2. Perform multiplication before addition:
$6\times 4=24$

3. Perform addition:
$24+8=32$

Thus, the final value of the given expression is 32.