SOLUTION: Solve the systems by the addition method 2) 3x + 9y = 15 –x + 5y = 3

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Question 314184: Solve the systems by the addition method
2) 3x + 9y = 15
–x + 5y = 3

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
1.
2.
Multiply eq.2 by 3 and add to eq. 1,



Then use either equation to solve for x.





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