X-3y=4 5x+3y=-1 помогите срочно
X-3y=4 5x+3y=-1 x=3y+4 5(3y+4)+3y=-1 15y+20+3y+1=0 18y+21=0 y=-21/18=-7/6=-1 1/6 x=3*(-7/6)+4= 1/2