Final answer:
The best translation of the sentence 'It wouldn't be worth the trouble' is No valdría la pena.
Step-by-step explanation:
The best translation of the sentence 'It wouldn't be worth the trouble' is No valdría la pena. This sentence is in the conditional tense and expresses a hypothetical situation where something is not worth the effort. The subject 'it' is replaced by the impersonal pronoun 'No'.
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