To divide 4(5j - 3) by 4, you can distribute the division to each term inside the parentheses:
4(5j - 3) / 4 = (4 * 5j - 4 * 3) / 4
Simplifying further:
= (20j - 12) / 4
= 20j / 4 - 12 / 4
= 5j - 3
Therefore, 4(5j - 3) divided by 4 is equal to 5j - 3.