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Introduction Further info Tech |
| D3. Elementary algebra: solving simultaneous linear equations | |
| Graphical method | |
| Two simultaneous equations can be
solved by plotting them on the same graph. The coordinates of the point where
the lines cross is the solution to the pair of simultaneous equations. The display shows you the coordinates of two points, A and B on one line, and C and D on another, which you can move. The equations of the two lines are given and the coordinates of P, the point where the lines intersect. |