Răspuns:
x= 1/10
y= - 3/10
Explicație pas cu pas:
x+yi+3xi+3i²y=1 =>
=> x+yi+3xi+3×(-1)y=1 =>
=> x+yi+3xi-3y=1 =>
=> x-3y+yi+3xi=1 =>
=> x-3y+(y+3x)i=1 =>
=> {x-3y=1
{y+3x=0 =>
{3x+y=0 =>
=> {-3x+9y=-3
=> 10y=-3 =>
=> y=- 3/10 =>
=> 3x-3/10=0 =>
=> x=1/10 =>
=> x=1/10
y=- 3/10
