mohon dijawab dan jika boleh beri pembahasannya ^^ terimakasih~

segitiga ABC = segitiga XYZ
A = X, AB = XY
A = (11x - 1)°
X = (9x + 5)°
AC = (7x + 5) cm
XZ = ? cm

pertama, cari dulu nilai xnya,
A = X
11x - 1 = 9x + 5
11x - 9x = 5 + 1
2x = 6
x = 6/2 = 3

karena kongruen dan AB = XY, maka AC = XZ
masukkan x = 3 ke AC
XZ = AC = 7(3) + 5 = 21 + 5 = 26 cm (c)

maaf kalau salah
semoga membantu