Aflati x din proportia 4/2x-1=18/33​

Răspuns :

[tex] \frac{4}{2x - 1} = \frac{18}{33} [/tex]

[tex]33 \times 4 = 18(2x - 1)[/tex]

[tex]132 = 36x - 18[/tex]

[tex] - 36x = - 150[/tex]

[tex] = \frac{150}{36} = \frac{75}{18} = \frac{25}{6} [/tex]