How do you simplify \frac { x + 1} { x - 1} = \frac { 2} { 2x - 1} + \frac { 2} { x - 1}x+1x1=22x1+2x1?

1 Answer
Oct 26, 2016

I found: x=3/2x=32

Explanation:

Let us take (x-1)(2x-1)(x1)(2x1) as common denominator and manipulate our fractions to get:

((x+1)(2x-1))/((x-1)(2x-1))=(2(x-1)+2(2x-1))/((x-1)(2x-1))(x+1)(2x1)(x1)(2x1)=2(x1)+2(2x1)(x1)(2x1)

(2x^2-x+2x-1)/cancel((x-1)(2x-1))=(2x-2+4x-2)/cancel((x-1)(2x-1))

2x^2-5x+3=0

we use the Quadratic Formula:

x_(1,2)=(5+-sqrt(25-24))/4
x_1=(5+1)/4=3/2
x_2=(5-1)/4=1 that cannot be used because it will make the denominator x-1 equal to zero in the original expression!