Matematika A - 2014. ljeto, 4.

$\frac{x}{-3}+\frac{y}{-7}=1\backslash frac\{x\}\{-3\}+\backslash frac\{y\}\{-7\}=1$

$\frac{x}{-2}+\frac{y}{-5}=1\backslash frac\{x\}\{-2\}+\backslash frac\{y\}\{-5\}=1$

$\frac{x}{2}+\frac{y}{5}=1\backslash frac\{x\}\{2\}+\backslash frac\{y\}\{5\}=1$

$\frac{x}{3}+\frac{y}{7}=1\backslash frac\{x\}\{3\}+\backslash frac\{y\}\{7\}=1$