[tex] \dfrac{2}{3x} = 12 [/tex]
Cross multiply:
[tex]12 \times 3x = 2[/tex]
Multiply:
[tex]36x = 2[/tex]
Divide both sides by 36:
[tex]x = \dfrac{2}{36} [/tex]
Simplify:
[tex]x = \dfrac{1}{18} [/tex]
[tex]\boxed {\boxed {\text {Answer : }x = \dfrac{1}{18}}}[/tex]