Arranging equations (short and long ones) in a presentable way
48728
Number equations and preserving alignment of equal signs
47985
How can I break equations in smaller pieces?
1778
How to make a standalone document with one equation?
3568
Fast way to get a position of combination (without repetitions)
24124
To have nice tabbed text next to equations?
27341
Making  a new environment combining equation and split
73374
Using braces to label parts of an equation
14609
How many ways "ARRANGE" can be arranged?
133080
Adding braces around equations
14641
Numbering side-by-side equations or inline equations
19930
repeating an equation and getting the same equation number?
123065
Pretty way to group elements at odd and even positions
39107
Which command should I use for displayed equations?
139604
Align successive equations through the entire document
9564
How to break long equations while keeping alignment?
93704
I want to split a long equation in many lines
37504
How to Make Theorems and Equations Share Numbering