{t=1/3z-1
{4(z-3t)-(2z+t)=11-2(2z+t)
4(z-3(1/3z-1))-(2z+1/3z-1)=11-2(2z+1/3z-1)
z=0
t=1/3×0-1
t= -1
(t,z)=(-1,0)
{3-5(0,2×(-1) -2×0)=3(3×0+2)+2× ( -1)
{4(0-3×( -1))-(2×0-1)=11-2(2×0-1)
{4=4
{13=13
(t,z)= ( -1,0)
ответ: t= -1
{t=1/3z-1
{4(z-3t)-(2z+t)=11-2(2z+t)
4(z-3(1/3z-1))-(2z+1/3z-1)=11-2(2z+1/3z-1)
z=0
t=1/3×0-1
t= -1
(t,z)=(-1,0)
{3-5(0,2×(-1) -2×0)=3(3×0+2)+2× ( -1)
{4(0-3×( -1))-(2×0-1)=11-2(2×0-1)
{4=4
{13=13
(t,z)= ( -1,0)
ответ: t= -1
z=0