Change the sidebar position

Depends on your theme. A link to your site might help…

My Blog Address: https://mojeman.ir

It is true that I said that I want to place the Sidebar from right to left move, but in fact I must place the Sidebar to move from left to right.

Please help me…

What exactly do you want to do? Move the sidebar on the left side to the right side. Or change the text-direction inside the sidebar?

I want to move the sidebar from left to right

In your theme Style.css file
change

.narrowcolumn {
float: left;
padding: 0 0 20px 45px;
margin: 0px 0 0;
width: 450px;
}

and

Change

#sidebar
{
padding: 20px 0 10px 0;
margin-left: 545px;
width: 190px;
}