please send me the answer as soon as possible
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Let its breadth be x
length = 8-2x
perimeter = 56
p = 2(l+b)
56 = 2l + 2b
56 = (2 × 8-2x) + (2 × x)
56 = (16-4x) + (2x)
56 = 16-4x+2x
56 = 16-2x
16-2x = 56
-2x = 56-16
-2x = 40
2x = -40
x = -40/2
x = -20
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