tolong dijawab no 4 5 6 pakai cara

4. 160 = 5x × 4x/2
160 = 20x ÷ 2
20x = 160 ÷ 2
X = 80 ÷ 20
X = 4
5. 8×6×2 = 96
= 500 - 96 = 404

Maaf kalau salah, dan saya tdk tau jawabamn no 6