Relax

Respuesta :

Answer:

a - b

Step-by-step explanation:

b - 3b + a + b. ​

Combine like terms

= a - b

Answer:

[tex]\boxed{\bold{-b+a}}[/tex]

Explanation:

Group Like Terms

= [tex]\bold{b-3b+b+a}[/tex]

Combine Similar Elements: [tex]\bold{b-3b+b=-b}[/tex]

= [tex]\bold{-b+a}[/tex]

- M -