Respuesta :

Answer:

30

Step-by-step explanation:

use PEMDAS (parenthesis first)

substitute in a = 7

2 ( 7 + 8 )

2 (15)

30

Answer:

30

Step-by-step explanation:

[tex]2(a+8); a =7\\\\2(7+8)\\\\2(15)\\\\\boxed{30}[/tex]

Hope this helps.