equation_numbering

[Andreas Rau]

Hi,

simple question, but I am in quite a hurry (as probably many of us):

The UsersGuide states that each line of a multiline equation is numbered
separately by default. However, I only get one number vertically
centered for the multiple lines. 
How to get the default behavior, so I can toggle the numbering of
specific lines on and off?

Thanx for your help
Andreas
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