Answer:
The answer is [tex]L=\frac{P-2*W}{2}[/tex]
Step-by-step explanation:
In order to solve for L, we have to free the L variable.
Mathematically, we have to subtract, add, multiply or divide the same terms from each side of the equation. In that way, we can change the equation and free a variable.
Therefore, we have to subtract 2*W term, and then we have to divide by 2.
So,
[tex]P=2*L+2*W\\P-2*W=2*L+2*W-2*W\\P-2*W=2*L\\\frac{P-2*W}{2}=\frac{2*L}{2}\\ L=\frac{P-2*W}{2}[/tex]
Finally, the expression for L is [tex]L=\frac{P-2*W}{2}[/tex]
