| Name: |
reza | | E-Mail: |
reza0431 | | Location: |
tehran | | Birth Year: |
1961 | | Gender: |
Male | | Fortune: |
An algebra teacher is discussing a problem with a student. The teacher
says: "Now, suppose x is the speed at which the train is travelling...".
And the student says "But teacher, what if x is not the |
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