Question

a. \(\frac{4}{3}\)- \(\frac{3}{2}\):  X =\(\frac{1}{6}\)

b.( X + \(\frac{2}{3}\)) : \(\frac{1}{3}\)= \(\frac{41}{3}\)

c. X x \(\frac{11}{5}\)- X  x \(\frac{4}{7}\)= \(\frac{5}{7}\)

d. 11 x (  X - 6 ) = 4 x  X + 11

e. ( X - 21 x 13 ) : 11 = 30

Answer 1

\(a.\frac{4}{3}-\frac{3}{2}:X=\frac{1}{6}\)

           \(\frac{3}{2}:X=\frac{4}{3}-\frac{1}{6}\)

           \(\frac{3}{2}:X=\frac{8}{6}-\frac{1}{6}\)

           \(\frac{3}{2}:X=\frac{7}{6}\)

               \(X=\frac{3}{2}:\frac{7}{6}\)

              \(X=\frac{3}{2}\times\frac{6}{7}\)

              \(X=\frac{9}{7}\)

Answer 2

\(b.\left(X+\frac{2}{3}\right):\frac{1}{3}=\frac{41}{3}\)

    \(X-\frac{2}{3}=\frac{41}{3}.\frac{1}{3}\)

   \(X-\frac{2}{3}=\frac{41}{9}\)

  \(X=\frac{41}{9}+\frac{2}{3}\)

  \(X=\frac{41}{9}+\frac{6}{9}\)

 \(X=\frac{47}{9}\)

Answer 3

\(c.X\times\frac{11}{5}-X\times\frac{4}{7}=\frac{5}{7}\)

  \(X\times\left(\frac{11}{5}-\frac{4}{7}\right)=\frac{5}{7}\)

  \(X\times\frac{57}{35}=\frac{5}{7}\)

  \(X=\frac{5}{7}:\frac{57}{35}\)

 \(X=\frac{5}{7}\times\frac{35}{57}\)

\(X=\frac{25}{57}\)

Answer 4

a. \(\frac{4}{3}-\frac{3}{2}\div X=\frac{1}{6}\)

\(\frac{3}{2}\div X=\frac{4}{3}-\frac{1}{6}\)

\(\frac{3}{2}\div X=\frac{7}{6}\)

\(X=\frac{3}{2}\div\frac{7}{6}\)

\(X=\frac{9}{7}\)

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Answer 5

\(d.11\times\left(X-6\right)=4\times X+11\)

   \(11\times X-66=4\times X+11\)

   \(11\times X-4\times X=11+66\)

    \(7\times X=77\)

          \(X=77:7\)     

          \(X=11\)

Answer 6

\(e.\left(X-21\times13\right):11=30\)

    \(X-21\times13=30\times11\)

   \(X-21\times13=330\)

   \(X-21=330:13\)

   \(X-21=\frac{330}{13}\)

   \(X=\frac{330}{13}+21\)

   \(X=\frac{603}{13}\)

Answer 7

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Answer 8

đáp án là:  9/7  nha mấy bạn !!!