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Find the pairs of equal sets, if any, gi...

Find the pairs of equal sets, if any, give reasons:
`A = {0}, B = {x : x > 15 and x < 5}`,
`C = {x : x – 5 = 0 }, D = {x: x^(2) = 25}`,
E = {x : x is an integral positive root of the equation `x^(2) – 2x –15 = 0`}.

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