Respuesta :

Equation

[tex]\begin{gathered} -2x+42-4(5+12x)=9x+9 \\ -2x+42-20-48x=9x+9 \\ -48x-9x-2x=9+20-42 \\ -59x=-13 \\ x=\frac{13}{59} \end{gathered}[/tex]