Respuesta :

Hi1315

Answer:

[tex]r = - 5[/tex]

Step-by-step explanation:

[tex] - 2(1 - 8r) = - 82 \\ - 2 + 16r = - 82 \\ 16r = - 80 \\ \frac{16r}{16} = \frac{ - 80}{16} \\ r = - 5[/tex]