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2020վתвⱸɽⲻ

2019-06-05 16:47:42| й

1δ֪ϵ볣ڹͬʱʹ

֪6X+7Y=49XYΪX=?

A.3 B.4 C.5 D.7

йDͨʽӿԿ7Y49Ա76X϶ҲԱ76ܹ7ôXһܹ7ѡD

2żԣķʽ

֪7X+8Y=43XYΪX=?

A.5 B.4 C.3 D.2

йD8YΪż43Ϊ7XΪXΪųBCAѡX=5,Y=1ѡD

3β05βԣ0κβΪ0.5βΪ5ż

βΪ0

֪6X+5Y=41XYΪX=?

A.6 B.5 C.4 D.3

йA6XΪż41Ϊ5YΪYΪYΪʱ5YβΪ5,41βΪ16XβΪ6ֻ Aѡ6βΪ6㣬ѡA

4ϴų(ֱӴѡżԣβʹ)

֪6X+7Y=41XYΪX=?

A.1 B.2 C.3 D.4

йAѡA,XΪ1ʱYΪ5㣬ֱѡAѡ 

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