Answer and Step-by-step explanation:
[tex]\huge\boxed{r=-7}[/tex]
Step 1: Subtract 6r from both sides:
[tex]5r-2-6r=6r+5-6r[/tex]
[tex]-r-2=5[/tex]
Step 2: Add 2 to both the sides:
[tex]-r-2+2=5+2[/tex]
[tex]-r=7[/tex]
Step 3: Divide both sides by -1:
[tex]\frac{-r}{-1} =\frac{7}{-1}[/tex]
[tex]r=-7[/tex]