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(12-24)+10
(24-12= -12)+10
-12+10 = 12-10
=2
=-2(B.)
■ 12°C (Tawal) - 24°C (setelah dimasukkan ke dalam freezer) + 10 (suhu naik saat dihidangkan)
==》12 - 24 + 10 = 2