zad 6
[tex]3x \sqrt{ \frac{49}{16} } - {( \frac{7}{3} - \frac{23}{6})}^{2} = 8[/tex]
[tex]3x \times \frac{7}{4} - {( \frac{14 - 23}{6} )}^{2} = 8[/tex]
[tex]3x \times \frac{7}{4} = 8 + {( - \frac{9}{6} )}^{2} [/tex]
[tex]3x \times \frac{7}{4} = 8 + {( \frac{3}{2} )}^{2} [/tex]
[tex]3x \times \frac{7}{4} = 8 + \frac{9}{4} [/tex]
[tex]3x \times \frac{7}{4} = \frac{41}{4} [/tex]
[tex]3x = \frac{41}{4} \times \frac{4}{7} [/tex]
[tex]3x = \frac{41}{7} [/tex]
[tex]x = \frac{41}{7} \times \frac{1}{3} = \frac{41}{21} [/tex]
[tex]x = 1 \frac{20}{21} [/tex]
