[tex] \left \{ {{x-4y=2} \atop {3x-2y=16}} \right. [/tex] ⇔[tex] \left \{ {{-3x+12y= -6} \atop {3x-2y=16}} \right. [/tex]⇔[tex] \left \{ {{-3x+12y= -6} \atop {-10y= -10}} \right. [/tex]⇔[tex] \left \{ {{-3x+12y= -6} \atop {y=1}} \right. [/tex]⇔[tex] \left \{ {{-3x+12*1=-6} \atop {y=1}} \right. [/tex]⇔[tex] \left \{ {{-3x=18} \atop {y=1}} \right. [/tex]⇔[tex] \left \{ {{x=6} \atop {y=1}} \right. [/tex]
