Question

2x--1/2=-0,25

Tìm x 

mn giúp em với ạ

Answer 1

\(2x-\dfrac{1}{2}=-0,25\)

\(\Leftrightarrow2x-\dfrac{1}{2}=-\dfrac{1}{4}\)

\(\Leftrightarrow2x=\dfrac{1}{4}\)

\(\Leftrightarrow x=\dfrac{1}{8}\)

Answer 2

\(2x-\dfrac{-1}{2}=-0,25\)

\(2x-\dfrac{-1}{2}=-\dfrac{1}{4}\)

\(2x+\dfrac{1}{2}=-\dfrac{1}{4}\)

\(2x=\left(-\dfrac{1}{4}\right)-\dfrac{1}{2}\)

\(2x=-\dfrac{3}{4}\)

 \(x=-\dfrac{3}{4}:2\)

 \(x=-\dfrac{3}{8}\)