Question

tim x biet -2/3 (x-1/4)=1/3( 2x -1)

Answer 1

\(\frac{-2}{3}\left(x-\frac{1}{4}\right)=\frac{1}{3}\left(2x-1\right)\)\(\Leftrightarrow-2\left(x-\frac{1}{4}\right)=2x-1\)\(\Leftrightarrow-2x+\frac{1}{2}-2x+1=0\Leftrightarrow x=\frac{3}{8}\)

Answer 2

minh muon hoi -2 o dau vay

 

Answer 3

chia cả 2 vế cho \(\frac{1}{3}\) nhé

Answer 4

có phải 1/2 ta lấy 1/4 nhân 2 đg k

 

Answer 5

\(-2\times\frac{-1}{4}\) = \(\frac{1}{2}\) đó bạn