SOLUTION: Use a Graphing calculator to solve the system: √3x - y = 5 5x + y = 7 (The answer must be an ordered pair/ this symbol √ is suppose to be a square root)

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Question 466767: Use a Graphing calculator to solve the system:
√3x - y = 5
5x + y = 7
(The answer must be an ordered pair/ this symbol √ is suppose to be a square root)
Answer by ccs2011(207) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%283%29%2Ax+-+y+=+5
5x+%2B+y+=+7
Notice how coefficients of the y's are same but opposite sign
This means they will add to zero.
Add the equations together
%285%2Bsqrt%283%29%29x+=+12
Divide by 5+%2B+sqrt%283%29 on both sides
x+=+12%2F%285+%2B+sqrt%283%29%29
x+=+1.7825
Now substitute this value into 2nd equation
5%281.7825%29+%2B+y+=+7
8.9126+%2B+y+=+7
Subtract 8.9126 to both sides
y+=+-1.9126
Solution as an ordered pair: (1.7825, -1.9126)