2x+y=6中y是偶数.因为2x是偶数,因此y只能是偶数,而第一个式子中y不论奇数或偶数,那个式子都有成立的可能.
integers between 1 and 100,应该是包括1和100的.
【GRE数学】If x is an odd integer,for which of the following equ
2个回答
相关问题
-
[GRE数学]If -m/19 is an even integer,which of the following mu
-
SAT数学题：If m is a positive integer,which of the following cou
-
1.If x and y are integers and xy+x^2 is odd,which of the fol
-
sat 1if k is a positive integer,which of the following must
-
If“m”is an even integer ,then the following is the sum of th
-
which of the following pairs of phrases is the odd one out g
-
If a is an odd number,then there must exist an integer such
-
一道gre数学题n is an even integer and a multiple of 3 .The remain
-
which of the following words is an" abbreviation"
-
GRE数学题3The sum of 4 integers is even.the number of these int