Question

\(\frac{11}{12}-\left(\frac{2}{5}+x\right)=\frac{2}{3}\)

Answer 1

\(\frac{11}{12}-\left(\frac{2}{5}+x\right)=\frac{2}{3}\)

\(\frac{2}{5}+x=\frac{11}{12}-\frac{2}{3}\)

\(\frac{2}{5}+x=\frac{1}{4}\)

\(x=\frac{1}{4}-\frac{2}{5}\)

\(x=-\frac{3}{20}\)

Answer 2

cảm ơn bạn nha 

Answer 3

\(\frac{11}{12}-\left(\frac{2}{5}+x\right)=\frac{2}{3}\)

               \(\left(\frac{2}{5}+x\right)=\frac{11}{12}-\frac{2}{3}\)

                \(\left(\frac{2}{5}+x\right)=\frac{1}{4}\)

                   \(\frac{2}{5}+x=\frac{1}{4}\)

                              \(x=\frac{1}{4}-\frac{2}{5}\)   

                               \(x=-\frac{3}{20}\)