yang tau bantu dong boy. lagi latihan buat UN nih

Misalkan tas=t dan sepatu=s

2t=5s<=>2t-5s=0
4t+s=1.100.000

Eliminasi
4t+s=1.100.000 (x1)
2t-5s=0 (x2)
---------------------------- -
4t+s=1.100.000
4t-10s=0
---------------------- -
11s=1.100.000
S=100.000

2t=5s
2t=5(100.000)
2t=500.000
T=250.000

3t+2s = 3(250.000) + 2(100.000)
= 750.000 + 200.000
= 950.000 (C)