SOLUTION: elimination / addition
x + 5y = 7
-x + 7y = 17
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Question 448439: elimination / addition
x + 5y = 7
-x + 7y = 17
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Add the two equations so that the x's cancel:
12y = 7 + 17 = 24 --> y = 2.
If we replace y into either equation (e.g. the first)we can get x = -3. Therefore (-3,2) is the solution.
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