Solve -25 = 4*z - 0*v - v, v = 5*z + 30 for z.
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What is the z'th term of 141, 243, 345?
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What is the d'th term of -68, -305, -688, -1211, -1868?
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What is the i'th term of 15, 24, 39, 60, 87, 120, 159?
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What is the k'th term of -2719, -5438, -8157?
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What is the a'th term of -2, -11, -20, -29?
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What is the f'th term of 150, 302, 454, 606?
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