Question

x/x-1 + 3/1 = 1/ x-1 - 1 , alguém sabe ? pfvr

Answer 1

$\frac{x}{x-1}+ \frac{3}{1} = \frac{1}{x-1} -1 \\ \\ \frac{-x-3x-3}{x-1}= \frac{-1+x-1}{x-1} \\ \\ -x-3x-3+1-x+1=0 \\ \\ -5x-1 = 0 .(-1) \\ \\ 5x +1 = 0 \\ \\ x= \frac{1}{5}$