harga 3 pasangaepatu dan 5 buah adalah 290.000 sedangkan harga 4 pasang sepatu dan 2 buah tas 200 harga 3 pasangsepatu dan 2 buah tas adalah

Sepatu = S
Tas = T

3S + 5T = 290.000 → dikali 4 → 12S + 20T = 1.160.000
4S + 2T = 200.000 → dikali 3 → 12S + 6T   =    600.000  -
                                                    --------------------------------
                                                              14T =     560.000
                                                                  T =       40.000

3S + 5T            = 290.000
3S + 5(40.000) = 290.000
3S + 200.000   = 290.000
3S                    = 290.000 - 200.000
3S                    = 90.000
S                      = 30.000

3S + 2T
= 3(30.000) + 2(40.000)
= 90.000 + 80.000
= Rp 170.000,00

Dik : 3s + 5t = 290000 , 4s + 2t = 200000
Dit : 3s + 2t =?
Jawab
■
3s + 5t = 290000 | ×4 》》 12s + 20t = 1160000
4s + 2t = 200000 | ×3 》》 12s + 6t = 600000
------------------------------------------------------------------------_
14t = 560000
t = 40000
■
3s + 5t = 290000
3s + 5(40000) = 290000
3s + 200000 = 290000
3s = 290000 - 200000
3s = 90000
s = 30000
■
3s + 2t =?
3(30000) + 2(40000)
90000 + 80000 = 170000