Answer:
[tex] \huge{ \bold{ \boxed{ \text{4a + 6}}}}[/tex]
Step-by-step explanation:
[tex] \text{ (3a + 7) + (a - 1)}[/tex]
In addition , sign of each term in the expression remains unchanged. So, Remove the unnecessary brackets.
[tex] \text{⇢ \: 3a + 7 + a - 1}[/tex]
Combine like terms. Like terms are those which have the same base. Only coefficients of like terms can be added or subtracted.
[tex] \text{⇢ \: 3a + a + 7 - 1}[/tex]
[tex] \text{⇢ \boxed{ \text{4a + 6}}}[/tex]
And we're done! :D
Hope I helped!
Best regards! :D
~TheAnimeGirl
