Question

Tìm x biết (3x - 2) : 25/7 = 7/5

 

Answer 1

\(\left(3x-2\right):\frac{25}{7}=\frac{7}{5}\)

\(\Leftrightarrow3x-2=\frac{7}{5}.\frac{25}{7}\)

\(\Leftrightarrow3x-2=5\)

\(\Leftrightarrow3x=5+2\)

\(\Leftrightarrow3x=7\)

\(\Leftrightarrow x=7:3\)

\(\Leftrightarrow x=\frac{7}{3}\)

Vậy x = \(\frac{7}{3}\)

Answer 2

3x-2=7/5x25/7

3x-2=5

3x=5+2

3x=7

x=7:3

x=7/3