Answer:
-8r
Step-by-step explanation:
subtract -3 from -5 to get -8. since both integers share a variable, the answer is just -8r
[tex]\\ \sf\longmapsto -5r-3r[/tex]
[tex]\\ \sf\longmapsto (-5-3)r[/tex]
[tex]\\ \sf\longmapsto (-8)r[/tex]
[tex]\\ \sf\longmapsto -8r[/tex]
Which is your required answer
