\(\frac{1}{3}x-0,5x=0,75\)
\(\Rightarrow-\frac{1}{6}x=0,75\)
\(\Rightarrow x=-\frac{9}{2}\)
\(\frac{1}{3}x-\frac{1}{2}x=\frac{3}{4}\)
\(\left(\frac{1}{3}+\frac{1}{2}\right)x=\frac{3}{4}\)
\(\frac{5}{6}x=\frac{3}{4}\)
\(x=\frac{3}{4}\div\frac{5}{6}\)
\(x=\frac{3}{4}\cdot\frac{6}{5}=\frac{9}{10}\)
\(#Cothanhkhe\)
\(\frac{1}{3}.x-0,5.x=0,75\)
\(\frac{1}{3}.x-\frac{1}{2}.x=\frac{3}{4}\)
\(x.\left(\frac{1}{3}-\frac{1}{2}\right)=\frac{3}{4}\)
\(x.\left(\frac{2}{6}-\frac{3}{6}\right)=\frac{3}{4}\)
\(x.\frac{-1}{6}=\frac{3}{4}\)
\(x=\frac{3}{4}:\frac{-1}{6}\)
\(x=\frac{-9}{2}\)
\(x\left(\frac{1}{3}-\frac{1}{2}\right)=\frac{3}{4}\)
=>\(x=\frac{3}{4}:\left(\frac{-1}{6}\right)=\frac{3}{4}.\left(-6\right)=\frac{-9}{2}\)