y

劍橋詞典

used to represent the second of two numbers or names that are not known or stated , when the first is represented by "x"
未知（或未指明）的數(shù)（或名稱(chēng)）（在兩個(gè)未知或未指明的數(shù)或名稱(chēng)中，儅第一個(gè)用x代替時(shí)，y用來(lái)代替第二個(gè)）
If 2x = 3y and x = 6, then y = 4. 假設(shè)2x=3y且x=6，則y=4。
The children on trial were referred to as child X and child Y. 受試兒童被稱(chēng)作兒童X和兒童Y。 返回 y