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cat's eye doorbell (stopped production, you can place an order if the quantity is large)
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¥0.0 | 1000 table available |
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Special Note: (This product is stock, and there may not be any stock).
Our products are default in English (including system sounds, packaging boxes, instructions, etc.), but you can contact us for customizations.
Please note that our store does not support one-time shipment (no shipping), please place your order according to the minimum order quantity given by the customer service, thank you for your cooperation.






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1. 解:由题意可知,当x=1时,y=2,代入不等式得:
2x + 3y = 5
解得:x = 1,y = 1
所以,当x=1时,y=2满足不等式2x + 3y = 5。
2. 解:由题意可知,当x=1时,y=2,代入不等式得:
2x + 3y = 5
解得:x = 1,y = 1
所以,当x=1时,y=2满足不等式2x + 3y = 5。
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