Typesetting equations with LaTeX: updated

[ahmet]

hi, can anyone help me on how ;

 

1) I could write a substituon in LaTeX?

2) I could set the page borders? (E.g.: 4 cm from top and left, and 3 cm from right and bottom,A4)

3)I could give numbers to lines ? (E.g.: 5 and multiplication of 5 number, renewed at each 5 number and renewed at each page,A4)

 

Thanks in advance.

Edited June 12, 2022 by ahmet

[icarus2]

Inline math is displayed in the flow of a sentence  \(m{c^2}\). hm
[math] y = \int f(x) dx [/math]

Inline brackets: \( y = x^2 \) 

Inline brackets: \[ y = x^2 \] 

Edited July 19, 2023 by icarus2

[Agent Smith]

\(y = x^2 \)