Sub-topic 1
2025 · National One-Eighth
Free
Solving $|2x-3|=x$
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Sub-topic 2
2025 · National One-Eighth
Premium
Solving $|ax+b|=x$ (second contest)
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Sub-topic 3
2026 · National Preliminary
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Least value of $|7x-3|$
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Sub-topic 4
2026 · National Quarterfinal
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Solving $|2x-5|=|x+7|$
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Sub-topic 5
2013 · National Quarterfinal
Premium
Solving $|2x-5|=7$
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Sub-topic 6
2013 · National Quarterfinal
Premium
Solving $|3x+2|=5$
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Sub-topic 7
2013 · National Quarterfinal
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Solving $|3x+9|=12$
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Sub-topic 8
2017 · National Semifinal
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Solution set of $|5x-15|\lt30$
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Sub-topic 9
2018 · National Preliminary
Premium
Solving $|2x+3|\lt11$
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Sub-topic 10
2020 · National One-Eighth
Premium
Solving $|2x-5|\lt9$
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