SOLUTION: solve each system using the substitution or elimination method x-2y=6 x+y=3

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Question 563176: solve each system using the substitution or elimination method
x-2y=6
x+y=3
Answer by Alan3354(69443) About Me  (Show Source):
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solve each system using the substitution or elimination method
x-2y=6
x+y=3
------ Subtract