Solve -t = 5*z + 9, -2*t - 11 = 3*z - 7*t for z.
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What is the s'th term of -18, -77, -176, -315, -494, -713, -972?
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What is the x'th term of -171, -784, -1805, -3234?
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What is the q'th term of -38, -121, -260, -455, -706, -1013?
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What is the u'th term of -714, -732, -750, -768?
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What is the u'th term of 397, 400, 413, 442, 493?
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What is the b'th term of -2007, -4005, -6003, -8001?
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