Respuesta :

AnimeBrainly
D = 3c + 4a

isolate the c

D (-4a) = 3c + 4a (-4a)

D - 4a = 3c

(D -4a)/3 = (3c/3)

c = (D - 4a)/3


c = (D - 4a)/3 is your answer

hope this helps