How do you solve #(2x+1)/x-(x+1)/(x-4)=-20/(x^2-4x)#? Precalculus Solving Rational Equations Solving Rational Equations on a Graphing Calculator 1 Answer GiĆ³ Nov 5, 2016 I found #x=4# but this is not a valid value for #x#: Explanation: Have a look: Answer link Related questions How do I solve #f(x)=(2x+5)/(x-1)# on a TI-84? How do I solve #f(x)=(x+2)/(x^2+1)# on a TI-84? How do I solve #f(x)=(x^3-8)/(x^2+5x+6)# on a TI-84? How do I solve #f(x)=(2x)/(x^2-4)# on a TI-83? How do I solve #f(x)=x/(5x+2)# on a TI-83? What are you looking for when you are solving a rational equation on a graphing calculator? How do you solve a rational equation by using a graph? How do you solve for x if #1/(x-3)+1/(x+3)=4/(x^2-9)#? How do you find the inverse of #g(x)= (x + 2) / (x - 3)#? How do you solve #15/p+p=16#? See all questions in Solving Rational Equations on a Graphing Calculator Impact of this question 5541 views around the world You can reuse this answer Creative Commons License