Two complex numbers: a + bi and c + di are equal if a = c and b = d. Use that fact to solve for x and y : ( 3x -yi ) i = 6 ( 1 + yi)

( 3x -yi ) i = 6 ( 1 + yi) 
3xi+y =6+6yi 
y+3xi=6+6yi 
real:
y=6 
Imaginary: 
3x=6y=6(6)
x=12 

:)