Question
PSLE
Andy sold (5f + 4) files on Friday. He sold 7 less files on Saturday than on Friday. How many files did he sell altogether? Give your answer in terms of f in the simplest form.
2 m

Click button first when a symbol is required. X

PSLE
Andy sold (5f + 4) files on Friday. He sold 7 less files on Saturday than on Friday. How many files did he sell altogether? Give your answer in terms of f in the simplest form.