Sistem Persamaan Linear Tiga Variabel (SPLTV)

jawab

m = merah
k = kuning
h = hijau

m + k + h = 58
2m + k - 2h = 30
m - 2k + 3h = 52

m + k+ h = 58
2m + k - 2h= 30 ....|(-)
-m  + 3h =  28 ...(i)

m + k + h= 58...}kali 2
m - 2k + 3h = 52

2m + 2k + 2h = 116
m - 2k + 3h = 52 ...|(+)
3m + 5h = 168 ...(ii)

-m  + 3h = 28 ...}kali 3
3m + 5h = 168

-3m + 9h = 84
3m + 5h = 168 ...|(+)
14h = 252
h= 18

(i)
-m + 3h = 28
-m + 3(18) = 28
-m = -26
m = 26

m + k + h = 58
26 + k + 18 = 58
k= 14

merah = 26
kuning = 14
hijau = 18