Respuesta :

B=A/2h-a
Isolate the variable by dividing each side by factors that don’t contain the variable.

Answer:

B = (A/(2h)) - a

Step-by-step explanation:

A = h(a+b)2

divide both sides of the equation by 2h

A/(2h) = a+b

subtract a from both sides

(A/(2h)) -a = b