Respuesta :
[tex]\bf \begin{cases} \boxed{y}= 14x-6\\ y = -4x+48 \end{cases}\qquad \stackrel{\textit{using substitution}}{\boxed{14x-6}=-4x+48}\implies 18x-6=48 \\\\\\ 18x=54\implies x=\cfrac{54}{18}\implies x = 3[/tex]
[tex]\bf \begin{cases} \boxed{y}= 14x-6\\ y = -4x+48 \end{cases}\qquad \stackrel{\textit{using substitution}}{\boxed{14x-6}=-4x+48}\implies 18x-6=48 \\\\\\ 18x=54\implies x=\cfrac{54}{18}\implies x = 3[/tex]