tolong bantu dong pakai cara yah

Hrga awal = Hrga akhir - diskon
n = 224000 - 30/100 × n
n = 224000 - 3/10n
n - 3/10n = 224000
10/10n - 3/10n = 224000
7/10n = 224000
n = 224000 ÷ 7/10
n = 224000 × 10/7
n = Rp. 320000 (D)

#Semogamembantu^^