To solve the equation \( r + 5 + 3 + 5 + 4 = 48 \), first combine the constant terms on the left side:
\[ 5 + 3 + 5 + 4 = 17 \]
Now, substitute this back into the equation:
\[ r + 17 = 48 \]
Next, isolate \( r \) by subtracting 17 from both sides:
\[ r = 48 - 17 \] \[ r = 31 \]
Thus, the value of \( r \) is \( 31 \).