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Verified answer
Misaltiket dewasa = x
tiket anak = y
maka persamaannya
2x + 3y = 19.000 (kali 1)
x + 2y = 11.000 (kali 2)
2x + 3y = 19.000
2x + 4y = 22.000
_____________- eliminasi x
-y = -3.000
y = 3.000
sub nilai y = 3.000 ke pers x + 2y = 11.000
x + 2(3.000) = 11.000
x + 6.000 = 11.000
x = 11.000 - 6.000
x = 5.000
harga tiket anak 3.000 harga tiket dewasa 5.000