Respuesta :

the normal equation of the line is

[tex]y=mx+b[/tex]

where m is the slope

we need to organize the eqquation like that

[tex]\begin{gathered} 20x-10y=60 \\ 20x-60=10y \\ y=\frac{20x-60}{10} \\ y=2x-6 \end{gathered}[/tex]

then, the slope is 2