Respuesta :

Answer:  I'm not sure what the question is, but we can simplify the equation to f(a) = 7a - 1

Step-by-step explanation:

f(a) = 7(a + 1) - 6

f(a) = 7a + 7 - 6    [Multiply (a+1) by 7]

f(a) = 7a -1