Question
PSLE
Pierre sold (2b + 9) notebooks on Saturday. He sold 9 more notebooks on Sunday than on Saturday. How many notebooks did he sell altogether? Give your answer in terms of b in the simplest form.
2 m

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PSLE
Pierre sold (2b + 9) notebooks on Saturday. He sold 9 more notebooks on Sunday than on Saturday. How many notebooks did he sell altogether? Give your answer in terms of b in the simplest form.