Answer:
P = 20x + 6
Explanation:
P = 2w + 2l
w = 4x + 3
l = 6x
P = 2(4x + 3) + 2(6x)
2(4x+3) + 2(6x)
8x+6 + 12x
12x+8x=20x
20x+6
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