| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 8 | × | 7 | a | − | 8 | b | − | 8 | × | 3 | − | 7 | × | 3 | a | − | 7 | × | 7 | b | + | 7 | × | 4 | = | 35 | a | − | 57 | b | + | 4 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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(2) | | | | | | | | | | | | | | | | | | | | | | | | 3 | ( | 8 | p | − | 7 | q | − | 3 | ) | + | 8 | ( | 10 | p | − | 4 | q | − | 8 | ) | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 3 | × | 8 | p | − | 3 | × | 7 | q | − | 3 | × | 3 | + | 8 | × | 10 | p | − | 8 | × | 4 | q | − | 8 | × | 8 | = | 104 | p | − | 53 | q | − | 73 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | = | 2 | p | − | 2 | q | + | 10 | × | 9 | p | + | 10 | × | 5 | q | = | 92 | p | + | 48 | q | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | = | 3 | × | 4 | p | − | 3 | × | 7 | + | 5 | × | 6 | p | + | 5 | × | 7 | = | 42 | p | + | 14 | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | = | 9 | × | 3 | p | − | 9 | q | + | 4 | × | 5 | p | − | 4 | × | 6 | q | = | 47 | p | − | 33 | q | | | | | | | | | | | | | | | | | | | | | | | | | | |
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(6) | | | | | | | | | | | | | | | | | | | | | | | | 7 | ( | 4 | x | + | 7 | y | − | 4 | ) | − | 8 | ( | 8 | x | + | 8 | y | − | 10 | ) | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 7 | × | 4 | x | + | 7 | × | 7 | y | − | 7 | × | 4 | − | 8 | × | 8 | x | − | 8 | × | 8 | y | + | 8 | × | 10 | = | −36 | x | − | 15 | y | + | 52 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | = | 7 | × | 2 | x | − | 7 | × | 10 | y | − | 7 | × | 9 | x | + | 7 | × | 7 | y | = | −49 | x | − | 21 | y | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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