Question

Aflati z daca z+4i=2/3z

Answer 1

$z=a+bi$
[tex]a+bi+4i= \frac{2}{3}*(a+bi) [/tex]
$3a+3bi+12i=2a+2bi$
$3a=2a \rightarrow a=0$
$3b+12=2b \rightarrow b=-12$
$z=a+bi=-12i$