Each term in the sequence below is six more than the previous term. What is the value of x + z?

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Accepted Answer

The term that follows z is 7. Since each term is 6 more than the previous term, z must be 6 less than 7. Therefore, z = 7 – 6 = 1. In the same way, y is 6 less than z and x is 6 less than y; y = 1 – 6 = –5 and x = –5 – 6 = –11. The sum of x + z is equal to –11 + 1 = –10.

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