7i-(4+5i)=0

Solution for 7i-(4+5i)=0 equation:

Simplifying
7i + -1(4 + 5i) = 0
7i + (4 * -1 + 5i * -1) = 0
7i + (-4 + -5i) = 0

Reorder the terms:
-4 + 7i + -5i = 0

Combine like terms: 7i + -5i = 2i
-4 + 2i = 0

Solving
-4 + 2i = 0

Solving for variable 'i'.

Move all terms containing i to the left, all other terms to the right.

Add '4' to each side of the equation.
-4 + 4 + 2i = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 2i = 0 + 4
2i = 0 + 4

Combine like terms: 0 + 4 = 4
2i = 4

Divide each side by '2'.
i = 2

Simplifying
i = 2