SOLUTION: I think is the right category. Sorry if it's not. Solve for x: x+1/x=-7/x+12

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I think is the right category. Sorry if it's not. Solve for x: x+1/x=-7/x+12      Log On


   

Question 436618: I think is the right category. Sorry if it's not.
Solve for x: x+1/x=-7/x+12
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for x:
Assume the problem is:
%28x%2B1%29%2Fx = %28-7%29%2F%28x%2B12%29
Cross multiply, results
-7x = (x+1)*(x+12)
FOIL
-7x = x^2 + 12x + x + 12
A quadratic equation
x^2 + 13x + 7x + 12 = 0
x^2 + 20x + 12 = 0
Use the quadratic formula to find two solutions
I got: x ~ -19.381; x ~ -.619