Question
PSLE
Billy sold (9c + 7) correction tapes on Friday. He sold c more correction tapes on Saturday than on Friday. How many correction tapes did he sell altogether? Give your answer in terms of c in the simplest form.
2 m

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PSLE
Billy sold (9c + 7) correction tapes on Friday. He sold c more correction tapes on Saturday than on Friday. How many correction tapes did he sell altogether? Give your answer in terms of c in the simplest form.