zad.1 [latex] left { {{2x+y=-3} atop {4x+3y=-1}} ight. [/latex] [latex] left { {{y=-3-2x} atop {4x+3(-3-2x)=-1}} ight. [/latex] [latex] left { {{y=-3-2x} atop {4x-9-6x=-1}} ight. [/latex] [latex] left { {{y=-3-2x} atop {4x-6x=-1+9}} ight. [/latex] [latex] left { {{y=-3-2x} atop {-2x=8 /:(-2)}} ight. [/latex] [latex] left { {{y=-3-2x} atop {x=4}} ight. [/latex] [latex] left { {{y=-3-2*4} atop {x=4}} ight. [/latex] [latex] left { {{y=-3-8} atop {x=4}} ight. [/latex] [latex] left { {{y=-11} atop {x=4}} ight. [/latex] zad.2 [latex] left { {{2x-3y=-4} atop {x+2y=5 /*(-2)}} ight. [/latex] [latex] left { {{2x-3y=-4} atop {-2x-4y=-10}} ight. [/latex] [latex] left { {{-7y=-14 /:(-7)} atop {x+2y=5}} ight. [/latex] [latex] left { {{y=2} atop {x+2*2=5}} ight. [/latex] [latex] left { {{y=2} atop {x+4=5}} ight. [/latex] [latex] left { {{y=2} atop {x=5-4}} ight. [/latex] [latex] left { {{y=2} atop {x=1}} ight. [/latex]
