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In the standard （x,y) coordinate plane, the midpoint of AB is （4,–3) and A is located at （

In the standard (x,y) coordinate plane, the midpoint of AB is (4,–3) and A is located at (1,–5). If (x,y) are thecoordinates of B, what is the value of x+y？

A.19

B.8

C.6

D.-1.5

E.-3

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第4题

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第5题

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第9题

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第10题

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