BANTU JAWAB YG NO.3 SAMA NO.4 DONG :(

3. p = l - 5
k = 2p + 2l
32 = 2(l - 5) + 2l
32 = 2l - 10 + 2l
32 = 2l + 2l - 10
32 + 10 = 4l
42 = 4l
42/4 = l
10, 5 = l
p = l - 5
= 10,5 - 5
= 5,5

4. x = Mobil
y = motor
x + y = 220 |×2000
2000x + 1000y = 290.000 |×1

2000x + 2000y = 440.000
2000x + 1000y = 290.000
______________________ _
1000y = 150.000
y = 150

x + y = 220
x + 150 = 220
x = 70
jadi ada 70 Mobil Dan 150 motor