# Frequently asked questions - Math

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## How do I align my equations at the equal sign?

Normally Math centers each line of a formula. To align each line at an equal sign you can use ** matrix**, as shown in the following example.

Display | Markup |
---|---|

`matrix {` |

The empty braces around the equal sign are necessary because **=** is a binary operator that needs an expression on each side.

The space around the **=** can be reduced by changing the spacing between columns of the matrix:

- Select ▸ .
- Click
**[Category]**and choose**Matrices**from the drop down menu. - Enter 0% for Column spacing.

Sometimes you need to "reserve" some space on the left of the equal sign in multi-line equations. Use ** phantom** as shown below.

Display | Markup |
---|---|

`""3(x+4)-2(x-1)=3 x+12-(2 x-2) newline` `""phantom {3(x+4)-2(x-1)}=3 x+12-2 x+2 newline` `""phantom {3(x+4)-2(x-1)}=x+14` |

The ** phantom** markup indicates that there should be a space the same length as "3(x+4)-2(x-1)". This results in the equal signs lining up properly.

Note: The **""** can also be replaced with ** alignl**.