Question

Calcule m e n tal que (m + n ) + 6i = (2m - n)i 

Answer 1

m+n=0
2m-n=6
3m=6
m=2

2m-n=6
2(2)-n=6
4-n=6
-n=2 (-1)
n=-2

Entao m=2 e n=-2