Question

Tim x:

\(\frac{3x-1}{2x+1}=\frac{3}{7}\)

Answer 1

\(\frac{3x-1}{2x+1}=\frac{3}{7}\)

\(\Rightarrow\left(3x-1\right)\cdot7=\left(2x+1\right)\cdot3\)

\(\Rightarrow21x-7=6x+3\)

\(\Rightarrow21x-6x=3+7\)

\(\Rightarrow15x=10\)

\(\Rightarrow x=\frac{2}{3}\)

Answer 2

( 3x -1 )7 = (2x+1)3

21x - 7= 6x +3

21x - 6x = 7+3

15x = 10

x = 10/15 = 2/3