Answer: (0;3)
[tex]\left \{ {{x+3y=9} \atop {-2x+2y=6}} \right. \\\\\\<=>\left \{ {x+3{y=9} \atop {-x+y=3}} \right.\\\\\\=> \left \{ {{4y=12} \atop {-x+y=3}} \right.\\\\\\<=>\left \{ {{y=3} \atop {-x+y=3}} \right.\\\\\\<=>\left \{ {{y=3} \atop {-x=0}} \right. \\\\\\<=>\left \{ {{y=3} \atop {x=0}} \right.[/tex]
Step-by-step explanation:
