5y - 2 (greater than or equal to sign) 14 - 3u?
回答 (5)
✔ 最佳答案
5y - 2 ≥ 14 - 3y
5y + 3y ≥ 14 + 2
8y ≥ 16
y ≥ 16/8
y ≥ 2
5y - 2 ⥠14 - 3y
5y + 3y ⥠14 + 2
8y ⥠16
y ⥠2
Therefore, y is greater or equal to 2.
Careless presentation even although y does lie next to u on the keyboard !
5y - 2 ⥠14 - 3u
8y ⥠16
y ⥠2
Over to u !
5y - 2 >> 14 - 3u
5y - 2 - 14 >> 14 - 3u - 14
5y - 16 >> 3u
(5/3)y - 16/3 >> u
U must be less than or equal to (5/3)y - (16/3)
Hope that's the answer you were looking for.
收錄日期: 2021-05-01 11:42:41
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