1) [latex]left { {4x+5y=-4} atop {-2x+3y=1,1}} ight.[/latex] [latex] +left { {{4x+5y=-4} atop {-4x+6y=2,2}} ight. [/latex] [latex]11y=-1,8[/latex] [latex]y=- frac{18}{10} * frac{1}{11} [/latex] [latex]y=- frac{18}{110} [/latex] [latex]y=- frac{9}{55} [/latex] [latex]4x+5*(- frac{9}{55} )=-4[/latex] [latex]4x=-4+ frac{45}{55} [/latex] [latex]4x=-3 frac{10}{55} [/latex] [latex]x= -frac{175}{55} * frac{1}{4} [/latex] [latex]x=- frac{175}{220} =- frac{35}{44} [/latex] [latex] left { {{y=- frac{9}{55} } atop {x=- frac{35}{44} }} ight. [/latex] 2) [latex] left { {{x- frac{3}{5}-y+y+ frac{1}{2} =1-(x-y) } atop {4x- frac{1}{3} -y- frac{3}{6}=-2(x-y) }} ight. [/latex] [latex]left { {{x- frac{1}{10} =1-x+y} atop {4x-y- frac{5}{6}=-2x+2y }} ight. [/latex] [latex] left { {{2x-y= frac{11}{10} } atop {6x-3y= frac{5}{6} }} ight. [/latex] [latex]+ left { {{-6x+3y=- frac{33}{10} } atop {6x-3y= frac{5}{6} }} ight. [/latex] [latex]0 eq frac{-33}{10} + frac{5}{6} [/latex] Równanie sprzeczne x∈Ф
