Question

/5x-4/=/x+2/

Answer 1

\(\left|5x-4\right|=\left|x+2\right|\\ 5x-4=x+2hay5x-4=-x-2\)

\(5x-x=2+4hay5x+x=-2+4\\\)

\(4x=6hay6x=2\)

\(x=\frac{3}{2}hayx=\frac{1}{3}\)

Answer 2

th1:với x>4/5

5x-4=x+2

4x=6 

x=3/2

th2:với -2<x<4/5

5-4x=x+2

5x=3

x=3/5