Final answer:
To solve the formula S = P + πI for I, you can subtract P from both sides of the equation and then divide both sides by π.
Step-by-step explanation:
The formula given is S = P + πI. To solve this formula for I, we need to isolate the variable I on one side of the equation. We can do this by subtracting P from both sides of the equation:
S - P = πI
Now, to solve for I, we need to divide both sides of the equation by π:
(S - P) / π = I
Therefore, the formula for I is I = (S - P) / π.