Question

tìm x:

a.2/9+x=1

b.6/7-x=2/3

c.x-1/2=1/4

đầy đủ tick

lẹ

Answer 1

7/9

4/21

3/4

Answer 2

7/ 9                                    4/21                                          và 3/4 nha

Answer 3

a.\(\frac{2}{9}+x=1\)

\(x=1-\frac{2}{9}\)

\(x=\frac{11}{9}\)

b.\(\frac{6}{7}-x=\frac{2}{3}\)

\(x=\frac{6}{7}-\frac{2}{3}\)

\(x=\frac{4}{21}\)

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

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

\(x=\frac{3}{4}\)

Answer 4

lam dung

Answer 5

a)\(\frac{2}{9}+x=1\)

             \(x=1-\frac{2}{9}\)

            \(x=\frac{9}{9}-\frac{2}{9}\)

             \(x=\frac{9-2}{9}\)

              \(x=\frac{7}{9}\)

b)\(\frac{6}{7}-x=\frac{2}{3}\)

             \(x=\frac{6}{7}-\frac{2}{3}\)

             \(x=\frac{18}{21}-\frac{14}{21}\)

            \(x=\frac{18-14}{21}\)

            \(x=\frac{4}{21}\)

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

   \(x=\frac{1}{4}+\frac{1}{2}\)

   \(x=\frac{1}{4}+\frac{2}{4}\)

   \(x=\frac{1+2}{4}\)

   \(x=\frac{3}{4}\)

  

Answer 6

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