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If the sum r+s is 2 less than the difference r-s, then s =?A、-2B、-1C、0D、1E、2
If the sum r+s is 2 less than the difference r-s, then s =?A、-2B、-1C、0D、1E、2
游客
2024-01-12
4
管理
问题
If the sum r+s is 2 less than the difference r-s, then s =?
选项
A、-2
B、-1
C、0
D、1
E、2
答案
B
解析
若r+s的值比r-s的值小2,则s=?
解:本题的正确答案为(B)。由题意可得:r+s=r-s-2→s=-1
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