Math questions

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[匿名]

2008-11-01 7:15 pm

(1D) 3=15=2x x=?
(2B) 19-2y=11 y=?
(2C) 14=8-3y y=?

更新1:

(2D) 5=14+3y y=?

更新2:

sor打錯左係 (1D) 3=15+2x x=?

更新3:

可唔可以write埋step

回答 (2)

[匿名]

2008-11-01 7:30 pm

✔ 最佳答案

如果(1d) 3+15=2x x=9
(2b) 19-2y=11 y=4
(2c) 14=8-3y y=-2
(2d) 5=14+3y y=-3

2008-11-01 11:31:25 補充：
(1D) 3=15+2x x=-6

參考: 我

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wing

2008-11-01 7:19 pm

1 how can I answer it ,2X is equal to 15 and 3
2.2y=8
y=4
3.3y=-6
y=-2

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