Question

tìm x :

2/3.x - 3/2.(x - 1/2)=5/12

các ban trả lời chi tiết nha .

mình xin cảm ơn .

Answer 1

\(\frac{2}{3}x-\frac{3}{2}\left(x-\frac{1}{2}\right)=\frac{5}{12}\)

\(\Rightarrow\frac{2}{3}x-\frac{3}{2}x+\frac{3}{4}=\frac{5}{12}\)

\(\Rightarrow\left(\frac{2}{3}-\frac{3}{2}\right)x=\frac{5}{12}-\frac{3}{4}\)

\(\Rightarrow-\frac{5}{6}x=-\frac{1}{3}\)

\(\Rightarrow x=\left(-\frac{1}{3}\right):\left(-\frac{5}{6}\right)\)

\(\Rightarrow x=\frac{2}{5}\)