Question

Solve for P.

S=A+1/2PL

Answer 1

9514 1404 393

Answer:

(b) P = 2(S -A) ÷ L

Explanation:

Undo what is done to P.

`S=A+(1)/(2)PL\qquad\text{given}\\\\S-A = (1)/(2)PL\qquad\text{subtract $A$}\\\\(2)/(L)(S-A)=P \qquad\text{multiply by $(2)/(L)$}\\\\\boxed{P=(2(S-A))/(L)}`