求A B C D E F G
A+D+E+F+G=300,A+B+E+F+G=300,A+B+C+F+G=350,A+B+C+D+G=400,A+B+C+D+E=480,B+C+D+E+F=600,C...
A+D+E+F+G=300,A+B+E+F+G=300,A+B+C+F+G=350,A+B+C+D+G=400,A+B+C+D+E=480,B+C+D+E+F=600,C+D+E+F+G=550,Z=A+B+C+D+E+F+G,求Z最小时A.B.C.D.E.F.G各为多少?
ABCDEFG都为正整数 展开
ABCDEFG都为正整数 展开
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A & & D E F G=300 B+C=296 A+B+C+D+E+F=46+296+196=538 G=58
A B & & E F G=300 C+D=296 A=-62 B=108 C=188 D=108 E=138 F=58
A B C & & F G=350 D+E=246
A B C D & & G=400 E+F=196
A B C D E & &=480 F+G=116
& B C D E F &=600 A+G=-4
& & C D E F G=550 A+B=46
5 5 5 5 5 5 5
A+B+C+D+E+F+G=596?
再看看吧,记得老师说过应该只能一个解吧,要不你再试试!
好像不可能ABCDEFG都为正整数
A B & & E F G=300 C+D=296 A=-62 B=108 C=188 D=108 E=138 F=58
A B C & & F G=350 D+E=246
A B C D & & G=400 E+F=196
A B C D E & &=480 F+G=116
& B C D E F &=600 A+G=-4
& & C D E F G=550 A+B=46
5 5 5 5 5 5 5
A+B+C+D+E+F+G=596?
再看看吧,记得老师说过应该只能一个解吧,要不你再试试!
好像不可能ABCDEFG都为正整数
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为数字
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