Question

tìm x , biết : 1/125 * x + 7/8 = 2

                                

Answer 1

\(\frac{1}{125}\cdot x+\frac{7}{8}=2\)

\(\frac{1}{125}\cdot x=2-\frac{7}{8}\)

\(\frac{1}{125}\cdot x=\frac{9}{8}\)

\(x=\frac{9}{8}:\frac{1}{125}\)

\(x=\frac{9}{8}\cdot125\)

\(x=\frac{1125}{8}\)

Answer 2

\(\frac{1}{125}\times x+\frac{7}{8}=2\)

\(\frac{1}{125}\times x=2-\frac{7}{8}\)

\(\frac{1}{125}\times x=\frac{16}{8}-\frac{7}{8}\)

\(\frac{1}{125}\times x=\frac{9}{8}\)

\(x=\frac{9}{8}\div\frac{1}{125}\)

\(x=\frac{9}{8}\times125\)

\(x=\frac{1125}{8}\)

Answer 3

\(\frac{1}{125}\cdot x+\frac{7}{8}=2\)

=>\(\frac{1}{125}\cdot x=2-\frac{7}{8}\)

=> \(\frac{1}{125}\cdot x=\frac{9}{8}\)

=>\(x=\frac{9}{8}:\frac{1}{125}\)

=>\(x=\frac{9}{8}\cdot125\)

=>\(x=\frac{1125}{8}\)

Answer 4

1/125:x-7/8=2

1/125:x=2-7/8

 1/125:x=9/8

  x= 9/8: 1/125 

  x= 9/8 : 125 

  x= 1125/8 

                      Vậy x= 1125/8