(-3+5i)+(18-7i)=

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Solution for (-3+5i)+(18-7i)= equation:


Simplifying
(-3 + 5i) + (18 + -7i) = 0

Remove parenthesis around (-3 + 5i)
-3 + 5i + (18 + -7i) = 0

Remove parenthesis around (18 + -7i)
-3 + 5i + 18 + -7i = 0

Reorder the terms:
-3 + 18 + 5i + -7i = 0

Combine like terms: -3 + 18 = 15
15 + 5i + -7i = 0

Combine like terms: 5i + -7i = -2i
15 + -2i = 0

Solving
15 + -2i = 0

Solving for variable 'i'.

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

Add '-15' to each side of the equation.
15 + -15 + -2i = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -2i = 0 + -15
-2i = 0 + -15

Combine like terms: 0 + -15 = -15
-2i = -15

Divide each side by '-2'.
i = 7.5

Simplifying
i = 7.5

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