Explanation

To solve this problem, let's assign values to the given symbols and evaluate the expression step-by-step:

- P donates "-" (subtraction)

- Q donates "+"

- R donates "x" (multiplication)

- W donates "+"

Now, let's substitute the symbols with their corresponding operations in the expression:

48 Q 12 R 10 P 8 W 4

= 48 + 12 x 10 - 2 + 8 + 4

Using the order of operations (PEMDAS/BODMAS), we perform the multiplication first:

= 48 + 12 x 10 - 2 + 8 + 4

= 48 + 120 - 2 + 8 + 4

Then, we perform the addition and subtraction from left to right:

= 48 + 120 - 2 + 8 + 4

= 168 - 2 + 8 + 4

= 166 + 8 + 4

= 174 + 4

= 178

Therefore, 48 Q 12 R 10 P 8 W 4 equals 178.