a: ta có: \(-\frac32-2x+\frac34=-2\)
=>\(-2x-\frac64+\frac34=-2\)
=>\(-2x-\frac34=-2\)
=>\(2x+\frac34=2\)
=>\(2x=2-\frac34=\frac54\)
=>\(x=\frac58\)
b: \(-\frac23x-\frac35=\frac25\)
=>\(-\frac23x=\frac25+\frac35=1\)
=>\(x=-1:\frac23=-\frac32\)
c: \(\frac{x}{2}-\left(\frac35-\frac{13}{5}\right)=-\left(\frac75-\frac{7}{10}\right)\)
=>\(x-\frac{-10}{5}=-\left(\frac{14}{10}-\frac{7}{10}\right)=-\frac{7}{10}\)
=>\(x+2=-\frac{7}{10}\)
=>\(x=-\frac{7}{10}-2=-\frac{27}{10}\)
d: \(\left(\frac32-\frac{2}{-5}\right):x=-\frac{38}{5}\)
=>\(\left(\frac{15}{10}+\frac{4}{10}\right):x=-\frac{38}{5}\)
=>\(\frac{19}{10}:x=-\frac{38}{5}\)
=>\(x=-\frac{19}{10}:\frac{38}{5}=-\frac{19}{10}\cdot\frac{5}{38}=\frac{-1}{2}\cdot\frac12=-\frac14\)
