Applicare la formula: $\frac{a}{b}+c$$=\frac{a+cb}{b}$, dove $a/b+c=16-\frac{1}{2}$, $a=-1$, $b=2$, $c=16$ e $a/b=-\frac{1}{2}$

Applicare la formula: $ab$$=ab$, dove $ab=16\cdot 2$, $a=16$ e $b=2$

Applicare la formula: $a+b$$=a+b$, dove $a=32$, $b=-1$ e $a+b=-1+32$

Applicare la formula: $\frac{\frac{a}{b}}{\frac{c}{f}}$$=\frac{af}{bc}$, dove $a=1$, $b=2$, $a/b/c/f=\frac{\frac{1}{2}x}{\frac{31}{2}}$, $c=31$, $a/b=\frac{1}{2}$, $f=2$ e $c/f=\frac{31}{2}$

Applicare la formula: $\frac{a}{a}$$=1$, dove $a=2$ e $a/a=\frac{2x}{2\cdot 31}$