Question
PSLE
Yoko had 10z lemons. She bought another 9 lemons and received 2z lemons from her cousins. Yoko's sisters then ate half of the remaining lemons. How many lemons had she left? Give your answer in terms of z in the simplest form.
2 m

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PSLE
Yoko had 10z lemons. She bought another 9 lemons and received 2z lemons from her cousins. Yoko's sisters then ate half of the remaining lemons. How many lemons had she left? Give your answer in terms of z in the simplest form.