Solve. Check for extraneous solutions.
= 4
A. {0, -6}
B. {-6, 6}
C. {-6}
D. ?
Answer: A
Mathematics
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Find the sum of the sequence.
A. 
B. - 
C. - 
D. 
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Solve the problem using matrices.Jerry has 3 pieces of string. The total length is 86 inches. The sum of the two longer pieces is 73. The middle piece is twice as long as the shortest piece. What are the lengths of the 3 pieces?
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