Question
PSLE
Ian sold (6d + 9) markers on Thursday. He sold d less markers on Friday than on Thursday. How many markers did he sell altogether? Give your answer in terms of d in the simplest form.
2 m

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PSLE
Ian sold (6d + 9) markers on Thursday. He sold d less markers on Friday than on Thursday. How many markers did he sell altogether? Give your answer in terms of d in the simplest form.