A group of students are talking,2 friends leave the group.Write an expression for the number of students in the group after 2 friends leave.
Answer- G-2
the letter G represents "Unknown" because we dont know how many students were in the group. 2 friends left and you take away 2. Since u have to take away 2 its like this G-2
Good Job! It's quite understandable but I suggest you to add pictures or a video so it can be easier! :D
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