ada yang bisa jwab ?

no 4
b. permintaan
P1 = 2
Q1 = 40

p2 = 3
q2 = 30

40 = a + 2b
30 = a + 3b
__________ -
10 = -b
- 10 = b

30 = a + 3(-10)
30 = a -30
60 = a

Qd = 60 - 10P

penawaran
P1 = 2
Q1 = 25

P2 = 3
Q2 = 30

25 = a + 2b
30 = a + 3b
__________ -
-5 = - b
5 = b

25 = a + 2b
25 = a + 2(5)
25 = a + 10
15 = a

Qs = 15 + 5P

c. Q permintaan = ?
P = 4
Qd = 60 - 10P
= 60 - 10(4)
= 60 - 40
= 20

d Q penawaran = ?
P = 4
Qs = 15 + 5P
= 15 + 5(4)
= 15 + 20
= 35



maaf ya cma bisa bantu no 4 aja