[tex]\huge\text{Hey there!}[/tex]
[tex]\huge\textsf{3a + 6 + 5a}[/tex]
[tex]\huge\text{COMBINE the LIKE TERMS}[/tex]
[tex]\huge\textsf{= (3a + 5a) + 6 }[/tex]
[tex]\huge\textsf{= 8a + 6}[/tex]
[tex]\huge\boxed{\text{Therefore, your answer is: \textsf{{8a + 6}}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
