Respuesta :

4a + 3b - a - 5b

First, gather the like terms.
[tex](4a - a)+(3b-5b)[/tex]
Second, subtract 4a - a to get 3a.
[tex](3a)+(3b-5b)[/tex]
Third, subtract 3b - 5b to get 2b.
[tex]3a - 2b[/tex]

Answer: 3a - 2b