Question

Tìm X
X-3/20 = X+1/5 

Answer 1

=>5(x-3)=20(x+1)

=>5x-15=20x+20

=>-15x=35

hay x=-7/3

Answer 2

\(x-\dfrac{3}{20}=x+\dfrac{1}{5}\)

\(\Leftrightarrow0=\dfrac{1}{5}+\dfrac{3}{20}\left(voli\right)\)

Vậy pt vô nghiệm

Answer 3

\(\Leftrightarrow\dfrac{x-3}{20}=\dfrac{4\left(x+1\right)}{20}\)

\(\Leftrightarrow x-3=4x+4\)

\(\Leftrightarrow3x=-7\Leftrightarrow x=-\dfrac{7}{3}\)