Question

| \(\frac{1}{2}\)x - \(\frac{1}{3}\)| =1,25. Tìm x

Answer 1

\(\left|\frac{1}{2}x-\frac{1}{3}\right|=1,25\)

=> \(\frac{1}{2}x-\frac{1}{3}=1,25\)  hoặc  \(-\left(\frac{1}{2}x-\frac{1}{3}\right)=1,25\)

=> \(\frac{1}{2}x=1,25+\frac{1}{3}=\frac{19}{12}\) hoặc: \(\frac{-1}{2}x+\frac{1}{3}=1,25\)

=> \(x=\frac{19}{12}:\frac{1}{2}=\frac{19}{6}\)  hoặc :  \(\frac{-1}{2}x=1,25-\frac{1}{3}=\frac{11}{12}\)

=> \(x=\frac{19}{6}\)      hoặc        \(x=\frac{11}{12}:\left(-\frac{1}{2}\right)=-\frac{11}{6}\)