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08-12-2017
Mathematics

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HELP ME PLZ Which expression, when simplified, is equal to 7p? A) 9p – 2pq – 7p – 5p + 2pq
B) 9p – 2pq – 7p + 5p – 2pq C) 9p + 2pq – 7p + 5p – 2pq D) 9p + 2pq + 7p + 5p – 2pq

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Kalahira Kalahira

17-12-2017

The answer is option (C) 9p+2qp-7p+5p-2pq if you see the expression you will note that +2pq and -2pq will cancel each other out as they are equal now remaining are +9p-7p+5p if you take p commomn from this expression it becomes p(9-7+5) and 9-7+5=7 so final expression will be 7p as required in the question

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