Aftab tells his daughter, “Seven years ago, I was seven times as old as you were then. Also, three years from now, I shall be three times as old as you will be.” (Isn’t this interesting?) Represent this situation algebraically and graphically.

A pair of linear equations in two variables is a set of two equations that can be written in the form ax + by = c and dx + ey = f, where a, b, c, d, e, and f are constants and x and y are variables. These equations represent two straight lines in the xy-plane.

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