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(2) | | | 2 | | | | | 3 | | 5 | | | | − | : | x | = | − | : | − | x | | 5 | 5 | 21 | | | | | | | | | |
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(4) | | | 1 | | | 1 | | | | 5 | | | | − | : | − | = | x | : | − | x | | 3 | 12 | 8 | | | | | | | | | |
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(5) | | | 1 | | | | 3 | | | 1 | | | | − | : | x | = | : | − | − | x | | 4 | 10 | 10 | | | | | | | | | |
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(6) | | 1 | | | 1 | | | 3 | | | | | | : | − | = | − | − | x | : | x | | 5 | 4 | 20 | | | | | | | | | |
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(7) | | 1 | | | | | 1 | | | | 5 | | : | x | = | − | : | x | − | | 6 | 24 | 28 | | | | | | | | |
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(8) | | 1 | | | 2 | | | | | 1 | | | | : | − | − | x | = | − | : | x | | 2 | 21 | 3 | | | | | | | | | |
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(9) | | | 2 | | 1 | | | | | | 26 | | − | : | = | x | : | x | + | | 7 | 3 | 21 | | | | | | | | |
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(10) | | | 3 | | | 14 | | | | | 6 | | | | − | : | − | − | x | = | − | : | x | | 7 | 15 | 35 | | | | | | | | | | |
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(11) | | 6 | | | | | | 4 | | | 12 | | − | x | : | x | = | : | − | | 25 | 7 | 35 | | | | | | | | |
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(12) | | | | 3 | | 3 | | | | 5 | | x | − | : | = | x | : | | 112 | 4 | 7 | | | | | | | |
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