(2a+1)i+3j=u
-i+(b+1)j=v
daca vectori sunt egali, inseamna ca ecuatile sunt egale
(2a+1)i+3j=-i+(b+1)j
(2a+1)i=-i l:i
2a+1=-1
2a=-2
a=-1
(b+1)j=3j l:j
b+1=3
b=2
