Răspuns:
[tex]a) =6\\b) =\frac{410+410b}{7}[/tex]
Explicație pas cu pas:
[tex]a) (3)*(3)-(3)=9-3=6[/tex]
[tex]b) [(12):14+5][1+(?)][1-(3)][1-6]=\\\\(\frac{(12)}{14} +5)(1+b)(1-3)(1-6)=\\\\(\frac{6}{7} +\frac{35}{7} )(1+b)(-2)(-5)=\\\\(\frac{41}{7} )(1+b)(10)=\\\\\frac{41}{7} *(1+b)*10=\\\\\frac{10}{1}*\frac{41}{7} (1+b)=\\\\\frac{410}{7} *(1+b)=\\\\\frac{410}{7} *1+\frac{410}{7} b=\\\\\frac{410}{7} +\frac{410b}{7} =\\\\[/tex]
[tex]\frac{410+410b}{7}[/tex]
Succes! :)
