Matematika B - 2014. ljeto, 4.

$a=-\frac{11}{7}a=-\backslash frac\{11\}\{7\}$

$a=-\frac{11}{13}a=-\backslash frac\{11\}\{13\}$

$a=\frac{7}{11}a=\backslash frac\{7\}\{11\}$

$a=\frac{55}{13}a=\backslash frac\{55\}\{13\}$