SOLUTION: The system of non-linear equations x^2 + 4y +2x = 11 and y = x + 5 has a unique solution. What is the value of x?

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Question 1097293: The system of non-linear equations x^2 + 4y +2x = 11 and y = x + 5 has a unique solution. What is the value of x?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Substitute,
x%5E2%2B4%28x%2B5%29%2B2x=11
x%5E2%2B4x%2B20%2B2x-11=0
x%5E2%2B6x%2B9=0
%28x%2B3%29%5E2=0
x%2B3=0
Solve for x.
Then find y using the second equation.