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#pasti benar
sepatu = x
sandal = y
2x + 3y = 175000
3x + 2y = 255000
Supaya lebih cepat kita gunakan metode eliminasi ya
2x + 3y = 175000 ⇒x3 = 6x + 9y = 525000
3x + 2y = 255000 ⇒x2 = 6x + 4y = 510000
⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒ dikurang
maka 5y = 15000
y = 3000
2x + 3y = 175000 ⇒x2 = 4x + 6y = 350000
3x + 2y = 255000 ⇒x3 = 9x + 6y = 765000
⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒ dikurang
maka -5x = -412000
x = 83000
Jadi harga sepasang sepatu Rp83.000,-
Harga 2 pasang sandal = 3000 x 2 = Rp6.000,-