[tex]3 \sqrt{7x} - 5 = 1[/tex]
[tex]3 \sqrt{7x} = 1 + 5[/tex]
[tex]3 \sqrt{7x} = 6[/tex]
[tex] \sqrt{7x} = 2[/tex]
[tex]7 x= 4[/tex]
[tex]x = \frac{4}{7} [/tex]
sau daca te ai referit la
[tex]3 \sqrt{7} x - 5 = 1[/tex]
[tex]3 \sqrt{7} x = 1 + 5[/tex]
[tex]3 \sqrt{7} x = 6[/tex]
[tex]x = \frac{2}{ \sqrt{7} } [/tex]
[tex]x = \frac{2 \sqrt{7} }{7} [/tex]
