Question

\(\frac{x-1}{x-5}\) =\(\frac{6}{7}\) 

Tìm x

 

Answer 1

\(\frac{x-1}{x-5}=\frac{6}{7}\)

=> 7 ( x - 1 ) = 6 ( x - 5 )

     7 x - 7     = 6x - 30

     7 x - 6 x  = - 30 + 7

          x        = - 23

Answer 2

x=7

x=12

Answer 3

\(\frac{x-1}{x-5}=\frac{6}{7}\Leftrightarrow7\left(x-1\right)=6\left(x-5\right)\)

\(\Leftrightarrow7x-7=6x-30\)

\(\Leftrightarrow7x-6x=-30+7\)

\(\Leftrightarrow x=-23\)

\(\text{Vậy x= -23}\)