(7+i)+(8+4i)=

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Solution for (7+i)+(8+4i)= equation:


Simplifying
(7 + i) + (8 + 4i) = 0

Remove parenthesis around (7 + i)
7 + i + (8 + 4i) = 0

Remove parenthesis around (8 + 4i)
7 + i + 8 + 4i = 0

Reorder the terms:
7 + 8 + i + 4i = 0

Combine like terms: 7 + 8 = 15
15 + i + 4i = 0

Combine like terms: i + 4i = 5i
15 + 5i = 0

Solving
15 + 5i = 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 + 5i = 0 + -15

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

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

Divide each side by '5'.
i = -3

Simplifying
i = -3

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