Question

Tính nhanh:

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

Giúp mik vs ạ!

Answer 1

Sửa đề tìm x

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

\(\Leftrightarrow\frac{1}{3}\left(2x-5\right)=\frac{-2}{3}-\frac{3}{2}\)\(=\frac{-13}{6}\)

\(\Leftrightarrow\) 2x-5=\(\frac{-13}{6}:\frac{1}{3}=\frac{-13}{6}.3=\frac{-13}{2}\)

\(\Leftrightarrow2x=\frac{-13}{2}+5=\frac{-3}{2}\)

\(\Leftrightarrow x=\frac{-3}{2}:2=\frac{-3}{2}.\frac{1}{2}=\frac{-3}{4}\)

Vậy: x=-3/4

Answer 2

Bài này phải là tìm x chứ chỉ?