Y=1-3x
x+13-5/(1-3x)=2|*(1-3x)
1-3x не =0
х не =⅓
х(1-3х)+13(1-3х)-5=2(1-3х)
х-3х²+13-39х-5=2-6х
3х²+32х-6=0
D=32²-4*3*(-6)=1024+72=1096=√1096=
=33,106
x1=(-32+33,106)/2*3=1,106/6
x1=0,184
x2=(-32-33,106)/6=-65,106/6
x2=-10,852
y1=1-3x1=1-3*0,184=1-0,552
y1=0,448
y2=1-3x2=1-3*(-10,852)=1-(-32,556)
y2=33,556