Question
PSLE
Luke sold (8i + 7) files on Wednesday. He sold i less files on Thursday than on Wednesday. How many files did he sell altogether? Give your answer in terms of i in the simplest form.
2 m

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PSLE
Luke sold (8i + 7) files on Wednesday. He sold i less files on Thursday than on Wednesday. How many files did he sell altogether? Give your answer in terms of i in the simplest form.