\(x-\dfrac{2}{5}=\dfrac{3}{2}\\ x=\dfrac{3}{2}+\dfrac{2}{5}\\ x=\dfrac{15}{10}+\dfrac{4}{10}\\ x=\dfrac{19}{10}\\ x-\dfrac{1}{2}=\dfrac{3}{4}\\ x=\dfrac{3}{4}+\dfrac{1}{2}\\ x=\dfrac{6}{8}+\dfrac{4}{8}\\ x=\dfrac{10}{8}\\ x=\dfrac{5}{4}\\ x-\left(-\dfrac{3}{4}\right)=-\dfrac{14}{25}\\ x+\dfrac{3}{4}=-\dfrac{14}{25}\\ x=-\dfrac{14}{25}-\dfrac{3}{4}\\ x=-\dfrac{56}{100}-\dfrac{75}{100}\\x=-\dfrac{131}{100}\)
a)\(x=\dfrac{15}{10}+\dfrac{4}{10}=\dfrac{19}{10}\)
b)\(x=\dfrac{6}{8}+\dfrac{4}{8}=\dfrac{5}{4}\)
c)\(x=-\dfrac{56}{100}+-\dfrac{75}{100}=-\dfrac{131}{100}\)
a. x=\(\dfrac{3}{2}+\dfrac{2}{5}=\dfrac{19}{10}\)
b.x=\(\dfrac{3}{4}+\dfrac{1}{2}=\dfrac{5}{4}\)
c.x=\(\dfrac{-14}{25}+\dfrac{-3}{4}=\dfrac{-131}{100}\)
