Solve the formula \( P=\pi d+2 L+W+2 \pi d \) for \( d \)

To solve the formula \( P=\pi d+2 L+W+2 \pi d \) for \( d \), you'll want to start by combining like terms. Notice that \( \pi d + 2 \pi d = 3 \pi d \). This gives us the equation: \[ P = 3 \pi d + 2 L + W. \] Now, to isolate \( d \), first subtract \( 2 L + W \) from both sides: \[ P - 2 L - W = 3 \pi d. \] Now, divide both sides by \( 3 \pi \): \[ d = \frac{P - 2 L - W}{3 \pi}. \] Now you've solved for \( d \) in terms of \( P \), \( L \), and \( W \)!