We are given the expression −n-n−n and the value n=−4 n = -4 n=−4. Substitute −4-4−4 for n n n in the expression:
−n=−(−4) -n = -(-4) −n=−(−4)
The expression −(−4)-(-4)−(−4) involves the negation of a negative number. The negation of a negative number is positive:
−n=4 -n = 4 −n=4
4 \boxed{4} 4
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