Carlos Fernando Knauer wrote:
How do I write a system of Equations in LyX ? For example:
x+y=2 x-y=0
With one "{" in front of both equations ?
type in a math box \cases and you'll get a { with two blue boxes behind it. Now increase the row number by C-Enter or M-m c i or by the LyX-menu Edit->Math.
Normal equations are produced as follows: - press C-Enter in a formula - set the cursor at the end of the formula and press C-Enter again.
To change formula types or the row/column number use the menu Edit->Math.
regards Uwe
p.s. you should read chap. 5 of the userguide