3 kemeja dan 2 celana panjang dijual seharga rp330.000 5 kemeja dan 4 celana panjang dijual Rp Rp600.000 harga 4 kemeja dan 3 celana panjang adalah

kemeja = k
celana = c

3k+2c=330000|*2| 6k = 660000
5k+4c=600000|*1 | 5k = 600000
6k-5k = 660000-600000
k = 60000

3k+2c = 330000 ==》 3(60000)+2c =330000
2c = 330000-180000
c = 150000/2
c = 75000

4k+3c = 4(60000)+3(75000)
= 240000+225000
= 465000

☆3 k + 2 cp = 330.000 || × 4 ||
5 k + 4 cp = 600.000 || × 2 ||


12k + 8cp = 1.320.000
10k + 8cp = 1.200.000

Dikurang

2k = 120.000
K = 60.000

☆3k + 2 cp = 330.000
3 (60.000) + 2 cp = 330.000
2cp = 150.000
Cp = 75.000


☆ 4k + 3 cp = 4 (60.000) + 3 ( 75.000)
=465.000