rozwiarz układy rownan . {u=4v 5u-v=10 {3r=s 3r+s=24

u=4v 5u-v=10 5 * 4v - v = 10 20v - v = 10 19v = 10 v = 10/19 u = 4 * 10/19 u = 40/19 u = 2 2/19 {3r=s 3r+s=24 3r + 3r = 24 6r = 24 r = 4 s = 3 * 4 s = 12