Question

[tôi là ai nhỉ]

tìm x

a,\(\left(3\frac{1}{2}-2.x\right).3\frac{1}{3}=7\frac{1}{3}\)

b, \(\frac{4}{9}.x=\frac{9}{8}-0,125\)

c,\(\frac{-x}{21}=\frac{20}{7}\)

Answer 1

[Lê Tài Bảo Châu]

a) \(\left(3\frac{1}{2}-2x\right).3\frac{1}{3}=7\frac{1}{3}\)

 \(\left(\frac{7}{2}-2x\right).\frac{10}{3}=\frac{22}{3}\)

  \(\frac{7}{2}-2x=\frac{11}{5}\)

              \(2x=\frac{13}{10}\)

                \(x=\frac{13}{20}\)

Vậy ...

Answer 2

[Lê Tài Bảo Châu]

b) \(\frac{4}{9}x=\frac{9}{8}-0,125\)

   \(\frac{4}{9}x=1\)

         \(x=\frac{9}{4}\)

Vậy...