2(i + 3) > 4(1 - i)

Distribute 2 in (i+3) and 4 in (1-i)

Move -4i to another side and 6 to another side. When moving to another side, you'll have to change the sign/operator to opposite (Plus -> Minus, Multiply -> Divide)

For this part, move 6 to divide -2.

Whenever either a numerator or a denominator is in negative, we can pull out the negative in the middle of fraction.

Note that i is the symbol of imaginary number - as defined -  i = √-1 But for this one, It's just a variable if I assume.

Thus, the answer is i > -1/3

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0