Respuesta :

Answer:

A = (q + z / 2)m

Step-by-step explanation:

9 + z / 2 . m =A

(q + z)m / 2 = A

(q + z)m/2 / m = A / m

2(q + z / 2) =  2(a / m)

Simplify Left:

q + z = 2(a / m)

Simplify right:

q + z = 2A / m

Subtract z from both sides

q = 2A / m -z

A = (q + z / 2)m