[tex] \frac{18r+29}{5} =-5[/tex]
Multiply both sides by 5 :
[tex] \frac{18r+29}{5} *5 = -5*5[/tex]
[tex]18r+29 =-25[/tex]
[tex]18r = - 54[/tex]
Divide both sides by 18 :
[tex] \frac{18r}{18} = \frac{-54}{18} [/tex]
[tex]r = \frac{-54}{18} [/tex]
[tex]r = -3[/tex]
hope this helps!