Question

Tim x ,biet:

4/7:x+5/6=0,5   

Answer 1

\(\frac{4}{7}:x=0,5-\frac{5}{6}=\frac{1}{2}-\frac{5}{6}=\frac{-1}{3}\)

  \(x=\frac{4}{7}:\frac{-1}{3}=\frac{-12}{7}\)

Answer 2

 4/7 : x + 5/6 = 0,5

4/7 : x + 5/6 = 1/2

4/7 : x            = 1/2 - 5/6

4/7 : x            = 3/6 : 5/6

4/7 : x            = 3/6 . 6/5

4/7 : x            = 3/5

         x            = 4/7 : 3/5

         x            = 4/7 . 5/3

         x            = 20/21

                    Vậy....

             @Cothanhkhe

Answer 3

\(\frac{4}{7}:x+\frac{5}{6}=0,5\)

\(\frac{4}{7}:x+\frac{5}{6}=\frac{1}{2}\)

\(\frac{4}{7}:x=\frac{1}{2}-\frac{5}{6}=\frac{3}{6}-\frac{5}{6}\)

\(\frac{4}{7}:x=\frac{-1}{3}\)

\(x=\frac{4}{7}:\frac{-1}{3}\)

\(x=\frac{4}{7}.\frac{-3}{1}\)

\(x=\frac{-12}{7}\)

Answer 4

\(\frac{4}{7}x+\frac{5}{6}=0,5\)

\(\frac{4}{7}x+\frac{5}{6}=\frac{1}{2}\)

\(\frac{4}{7}:x=\frac{1}{2}-\frac{5}{6}\)

\(\frac{4}{7}:x=\frac{3}{6}-\frac{5}{6}\)

\(\frac{4}{7}:x=\frac{-2}{6}\)

\(x=\frac{4}{7}:\frac{-2}{6}\)

\(x=\frac{4}{7}\times\frac{-6}{2}\)

\(x=\frac{-12}{7}\)