Question

Answer 1

\(a,x=\dfrac{3}{4}-\dfrac{1}{5}\\ x=\dfrac{15}{20}-\dfrac{4}{20}\\ x=\dfrac{11}{20}\\ b,x=\dfrac{-7}{8}+\dfrac{3}{4}\\ x=\dfrac{-7}{8}+\dfrac{6}{8}\\ x=-\dfrac{1}{8}\\ c,x=\dfrac{-19}{3}+\dfrac{5}{3}\\ x=\dfrac{-14}{3}\\ d,x=\dfrac{-7}{10}+\dfrac{3}{5}\\ x=\dfrac{-7}{10}+\dfrac{6}{10}\\ x=-\dfrac{1}{10}\)

Answer 2

e: =>1/5-x=2/5

hay x=-1/5

f: =>x=-11/12+23/18=-33/36+46/36=13/36

g: =>x=-1/2-2/3=-3/6-4/6=-7/6

h: =>x=4/9+5/9=1