Respuesta:
X = -1
- X = -2 + 3 = -1
[tex]{\boxed {\bold {-x-3=-2}}}}}[/tex]
[tex]\qquad \qquad\huge \underline{\boxed{\sf Procedimiento:}}[/tex]
[tex]{\boxed {\bold {-x-3+3=-2+3}}}}}[/tex]
[tex]{\boxed {\bold {x=-1}}}}}[/tex]
