-3-2x=9+3x me respondam urgentemente!!!!!

Resposta :

[tex]\large\boxed{\begin{array}{l}\rm -3-2x=9+3x\\\rm 9+3x=-3-2x\\\rm 3x+2x=-3-9\\\rm 5x=-12\\\\\rm x=-\dfrac{12}{5}\end{array}}[/tex]