Question 36036
The first Problem

2(3x-5) + 2(60)= 180

6x-10 + 120=180

6x+110= 180

6x=70

x=70/6

x = approx. 11.67

Check.

2(3*11.67-5) + 2(60) = 180

2(30.01) + 120 +180
 
60.02 + 120 = 180

180.02 = 180

180=180
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Problem 2
The perimeter of the whole court is 480 ft.

Suppose "x" is the width of the court.

the length of the court would be 

2x+6

To find perimeter of a rectangle the formula is 2l +2w

2x + 2(2x+6) = 480

2x + 4x + 12 =480

6x + 12 = 480

6x = 468

x= 468/6

x=78 ft

The width is 78 ft.
The length is 90 ft.

Check. 
2(78) + 2(90) = 480ft^2