Reply To: Math equations that are displayed
If your three equations make up a system of equations they would be aligned by like terms and the leftmost part of the system would start in cell 3. If it is not a system, but instead just a series of 3 equations, then each one would begin in cell 3.
The left most part of the displayed addition problem (the beginning cell of the separation line) would start in cell 3 if displayed to narrative material.