\"\"\"\"

\

The equation is \"\".

\

\"\"                                  (Divide each side by -7)

\

\"\"                                  ( cancel common terms)

\

\"\"                                          (divide:\"\")\"\"

\

Check:

\

To check, substitute \"\" in \"\"

\

\"\"                         

\

\"\"                                (Multipliy: \"\")     \ \ \"\"

\

The solution is \"\".

\