Respuesta :
Answer:
[tex]13ab[/tex]
Step-by-step explanation:
[tex]5ab + 9ab - ab[/tex]
According to addition and subtraction in PEMDAS, it is done from left to right.
[tex]5ab + 9ab = 14ab[/tex]
[tex]14ab - ab = 13ab[/tex]
Answer:
5ab + 9ab-ab= 14ab - ab= 13ab which is the second one