Because the put the opposite #'s on the opposite side
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14
2(7+5)=n 2(12)=n 24=n but its an opposite n, so the answer is -24
The opposite of 7 is -7, and the opposite of -7 is 7, so yes.
Every pair of opposite sides on a die adds up to 7: 1-6, 2-5, 3-4.
20