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lethaovy12
3 năm trước

Tìm x biết rằng 1+2y/18=1+4y/24=1+6y/6x

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bangtann
3 năm trước

Đáp án:

 x=5;y=14

Giải thích các bước giải:

Ta có: 1+2y18=1+4y24

(1+2y).24=(1+4y).18

24+48y=18+72y

24-18=72y-48y

24y=6

⇒y=14

Thay y=14 ta được:

1+4.1424=1+6.146x

6x.1=12.52

⇒x=5

Vậy x=5;y=14

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