Solve the system of equations using substitution.
A. x = 8 , y = -8; x = 2, y = -2
or (8, -8), (2, -2)
B. x = - 
, y = -2 or 
C. x = -8 , y = - 
; x = -2, y = - 
or 
, 
D. x = - 
, y = -8; x = - 
, y = -2
or 
, 
Answer: D
Mathematics
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+ 
A. 
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= 
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