[tex]a)\\\left \{ {{3x-2y=5} \atop {2x-2y=6 /*(-1)}} \right. \\+\left \{ {{3x-2y=5} \atop {-2x+2y=-6}} \right. \\3x-2x=5-6\\x=-1\\3*(-1)-2y=5\\-3-2y=5 /+3\\-2y=8 /:(-2)\\y=-4\\\\P(-1, -4)\\[/tex]
[tex]b) \\\left \{ {{3x-y=\frac12 /*2} \atop {6x-2y=1}} \right. \\\\\left \{ {{6x-2y=1} \atop {6x-2y=1}} \right.\\ 6x-2y=6x-2y\\L=P\\\\\text{Uklad rownan ma wszystkie punkty wspolne}[/tex]
