brainliest please help me and show all work

Answer:
- 12x + 24
Step-by-step explanation:
Since the perimeter is 2(length) + 2(width) your equation would start out as:
2[-2(3x-1)] + 2(10x)
2[-2(3x-1)] + 20 = 2(-6x + 2) + 20
2(-6x + 2) + 20 = - 12x + 24
Hope this Helps!!! :)