Bonjour
1)
(1) 5x + 4 → (b)
(2) (x + 4)* 5 = 5x + 20 = 5 (x + 4) → (a)
(3) (x + 4) / 5 → (c)
2)
[(x - 2) * 5] / 3 + 2x → (c).
