Question

3\(\frac{3}{7}+\left(-x+\frac{2}{3}\right)=2.x-3\frac{2}{5}\)

Answer 1

kết qua số ko đẹp đâu bn ạ

\(3\frac{3}{7}\) - x +\(\frac{2}{3}\) = 2x - \(3\frac{2}{5}\)

=> \(3\frac{3}{7}\) + \(\frac{2}{3}\)+ \(3\frac{2}{5}\)= x + 2x

=> \(\frac{787}{105}\)  = 3x

=> x = \(\frac{787}{315}\)

Answer 2

            \(\frac{24}{7}-\left(x-\frac{2}{3}\right)=2x-\frac{17}{5}\)

            \(\frac{24}{7}x-\frac{16}{7}=2x-\frac{17}{5}\)

            \(\frac{24}{7}x-2x=\frac{16}{7}-\frac{17}{5}\)

           \(\frac{10}{7}x=-\frac{39}{35}\)

                 \(x=-\frac{39}{50}\)