{12x + 11y = 1 / *22
{22x -21y = 47/ * (-12)
{264x + 242y =22
{-264x + 252y = -564
Dodajemy stronami:
264x+242y - 264x + 252y = 22 -564
494y = -542
y =- 542/496
y= -271/248
22x - 21* (-271/248) = 47
22x + 5691/248 =47
22x=(11656-5691)/248
22x=5965/248
x= 5965/5456
x= 5965/5456
y= -271/248