Given inequality is
[tex]-80\leq v-3(5-4v)[/tex]
Solve the inequality:
[tex]\begin{gathered} -80\leq v-15+12v \\ -80\leq13v-15 \\ -80+15\leq13v-15+15 \\ -65\leq13v \\ -\frac{65}{13}\leq\frac{13v}{13} \\ -5\leq v \end{gathered}[/tex]
The solution is
[tex]-5\le v[/tex]
This means v can take the values greater than or equal to -5.
That is shade the region that is right of the -5.
The required shaded region of the solution is:
