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Write each of the following expressions in words. Use the word difference in each case.$$7-x$$
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When you have subtraction, you can change it to adding the opposite. So this is the same as negative. Seven plus five five is the opposite of negative five. Now we're adding a negative and positive negative seven has a greater absolute value than five. So you could think of it as we have more negatives and positives, So the answer's going to be negative, and the difference between seven and five is too. So the answer is negative, too.
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