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Can I get help for the 14th question from this link?
https://docs.google.com/file/d/0ByXp6Ibu-fCyOTBhMmE5MjgtN2U2Yy00YWI1LThmNDQtZjAzOWVmMTdmNjc1/edit?pli=1
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Explanation & Answer
14. x - 3y = -10
so, x = 3y - 10
Now we substitute that into the second equation
2(3y - 10) + 5y = 2
6y - 20 + 5y = 2
11y = 22
y = 2
x = 3(2) - 10
x = - 4
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