tolongg dongg, pakai cara..tolong ya..

Sebelum pajak
Qd = Qs
25000 - 5P = 10000 + 10P
15000 = 15P
1000 = P

Q = 25000 - 5(1000)
= 25000 - 5000
= 20000

Sesudah pajak
Qs = 10000 + 10P
= 10000 + 10(P + 300)
= 10000 + 10P + 3000
= 13000 + 10P

Qd = Qs
25000 - 5P = 13000 + 10P
12000 = 15P
800 = P

Q = 25000 - 5(800)
= 25000 - 4000
= 21000

Jawaban : C