I am total beginner, and I read all questions and response on this site, but still can not figure it out. I tried align* and flalign, but always is some error. Hope you can help.

\usepackage[top=1in, bottom=1in]{geometry}


\textbf{2.}Use the properties of logarithms:  
$$\log_2(x^4\sqrt{\frac{x}{z^3}})$$ $$\ln(\frac{7x^3\sqrt{x+1}}{5})$$
  • Do you want all equations to begin at the left margin?
    – Bernard
    Mar 22, 2019 at 16:37
  • yes, left margin
    – MaYa
    Mar 23, 2019 at 2:15
  • please read a proper introduction to LaTeX. You will have more worries later if you continue the way you are going now.
    – Johannes_B
    Mar 23, 2019 at 6:18
  • Sure. Thanks again!
    – MaYa
    Mar 23, 2019 at 6:19

1 Answer 1


Like this?

\usepackage[top=1in, bottom=1in]{geometry}


% Option `fleqn' align all display-style equations
% to the left margin, but you have to use LaTeX
% command \[ \] instead of plain TeX command $$ $$

enter image description here

or this?

\usepackage[top=1in, bottom=1in]{geometry}



% The `align' environment (provided by `amsmath')
% can align all lines in the equation but still 
% make the equation centered. You have to add a &
% to make the lines left-aligned.
% LaTeX introductory documents.
% `align*' is `align' but the lines are not numbered

enter image description here


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