Răspuns:
[tex] = - \frac{3}{20} \\ [/tex]
Explicație pas cu pas:
[tex] - 3,25 + 3 \cdot \Big(1,7 - \frac{2}{3} \Big) \\ [/tex]
[tex] = - \frac{325 }{100} + 3 \cdot \Big( \frac{ {}^{3)} 17}{10} - \frac{ {}^{10)} 2}{3} \Big) \\ [/tex]
[tex] = - \frac{325}{100} + 3 \cdot \Big( \frac{51}{30} - \frac{20}{30} \Big) \\ [/tex]
[tex] = - \frac{325}{100} + \not3 \cdot \frac{31}{\not30} \\ [/tex]
[tex] = - \frac{325^{(5}}{100} + \frac{31}{10} \\ [/tex]
[tex] = - \frac{65}{20} + \frac{ {}^{2)} 31}{10} = - \frac{ 65}{20} + \frac{62}{20} =\boxed{ - \frac{3}{20} } \\ [/tex]
