Explicație pas cu pas:
[tex]n- \frac{1}{2} = \frac{p}{3} \\ \frac{n}{3}=p - \frac{1}{2} [/tex]
[tex]6n - 3 = 2p\\ 2n = 6p - 3[/tex]
[tex]6n - 3 = 2p\\ - 6n = - 18p + 9[/tex]
[tex] - 3 = - 16p + 9 \\ 16p = 12 \\ p = \frac{3}{4} [/tex]
[tex]2n = 6 \times \frac{3}{4} - 3 = \frac{9}{2} - 3 = \frac{3}{2} = > n = \frac{3}{4} [/tex]
