Solve -c + 3*h - 18 = -h, -5*c + 2*h - 18 = 0 for c.
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What is the w'th term of -34, -47, -56, -61?
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What is the z'th term of -50, -96, -144, -194, -246, -300, -356?
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What is the q'th term of 571, 564, 557?
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What is the f'th term of -10, -51, -172, -415, -822?
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What is the b'th term of 220, 888, 2002, 3562, 5568?
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What is the d'th term of 355, 356, 357, 358, 359, 360?
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