Question
PSLE
Tiffany had 2a grapefruits. She bought another 7 grapefruits and received 3a grapefruits from her friends. Tiffany's brothers then ate half of the remaining grapefruits. How many grapefruits had she left? Give your answer in terms of a in the simplest form.
2 m

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PSLE
Tiffany had 2a grapefruits. She bought another 7 grapefruits and received 3a grapefruits from her friends. Tiffany's brothers then ate half of the remaining grapefruits. How many grapefruits had she left? Give your answer in terms of a in the simplest form.