Question

Giải hộ  

Answer 1

a) \(2x-\dfrac{1}{2}=-3\)

\(\Rightarrow2x=-3+\dfrac{1}{2}\)

\(\Rightarrow2x=-\dfrac{5}{2}\)

\(\Rightarrow x=-\dfrac{5}{2}:2\)

\(\Rightarrow x=-\dfrac{5}{4}\)

b) \(9-x=\dfrac{1}{3}-\dfrac{1}{9}\)

\(\Rightarrow9-x=\dfrac{2}{9}\)

\(\Rightarrow x=9-\dfrac{2}{9}\)

\(\Rightarrow x=\dfrac{79}{9}\)

Answer 2

a: =>2x=-3+1/2=-5/2

=>x=-5/4

b: =>9-x=2/9

=>x=9-2/9=79/9

Answer 3

a) -5/4

b) 79/9