SOLUTION: Solve the following eauation for K. 9/2k-3=4/k+1 (2k-3)(k+1)9/2k-3=4/k+1(2k-3)(k+1) 9k+9=8k-12 9k-8k=-12-9 k=-21 But when you check it, it wi

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Solve the following eauation for K. 9/2k-3=4/k+1 (2k-3)(k+1)9/2k-3=4/k+1(2k-3)(k+1) 9k+9=8k-12 9k-8k=-12-9 k=-21 But when you check it, it wi      Log On


   



Question 121988: Solve the following eauation for K.
9/2k-3=4/k+1
(2k-3)(k+1)9/2k-3=4/k+1(2k-3)(k+1)
9k+9=8k-12
9k-8k=-12-9
k=-21
But when you check it, it will not work with negative 21. However it will check out with a positive 21. I must be missing a sign somewhere.

Answer by oscargut(2103) About Me  (Show Source):
You can put this solution on YOUR website!
Read again but is all right when you check it
in 9/(2k-3)=4/(k+1) k=-21
-1/5 = -1/5