Are the expressions equivalent? Use j = 3 and j = 8 to determine if they are. 7(j – 2) 4j – 5

Substitute j = 3: 7(j − 2) = 7 and 4j − 5 = 7, so the expressions match for that value. But when j = 8, 7(j − 2) = 42, while 4j − 5 = 27. Since the expressions give different values when j = 8, they are not equivalent; choice A is correct.

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