If x, y, and w are nonzero numbers and x-y=w, which of the following is equal to

游客2024-01-14  21

问题 If x, y, and w are nonzero numbers and x-y=w, which of the following is equal to 1?

选项 A、 
B、 
C、 
D、 
E、 

答案 A

解析 Add y to and subtract w from both sides of the equation x-y=w and you get x-w=y, so .
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