You need to get L by itself. Keep in mind with equality problems that what you do to one side, you must do to the other.
Let me break it down for you.
P=2L+2W, -2w from both sides.
P-2W=2L, now divide the other side by 2.
1/2P-W=L
Answer:
The area of the park is 
Step-by-step explanation:
we know that
The scale drawing is 
step 1
Find the actual length of the rectangular park
Divide the length in the drawing by the scale drawing
step 2
Find the actual width of the rectangular park
Divide the width in the drawing by the scale drawing
step 3
Find the area of the park

35
“Negative times a negative is a positive”
4.3
4=ones
.3= hundredths
0=tenths
Hope I helped:P