"On the way to the library, John walks 8 blocks from his house before realizing that he should have stopped at the post office t
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The absolute value of a number is its distance from 0. An easy way to think about this is that the absolute value turns a negative number positive, and has no effect on positive numbers. In this case, we are taking the absolute value of a negative number. This means we should simply make the number positive. Therefore, the answer is 