\"\"

\

Let x be the rent for one month in dollars.

\

The rent for two month is 2x dollars.

\

The amount for security deposit is 500 dollars.

\

The total amount they pay the landlord is 2800 dollars.

\

Therefore, the above situation represent the equation is \"\".\"\"

\

Solve the equation \"\" for x.

\

Subtract 500 from each side.

\

\"\"

\

\"\"

\

Divide each side by 2.

\

\"\"

\

\"\"

\

\"\".\"\"

\

The rent for one month is 1150 dollars.