(9-7i)+(6+9i)=15+2i

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Solution for (9-7i)+(6+9i)=15+2i equation: 


Simplifying
(9 + -7i) + (6 + 9i) = 15 + 2i

Remove parenthesis around (9 + -7i)
9 + -7i + (6 + 9i) = 15 + 2i

Remove parenthesis around (6 + 9i)
9 + -7i + 6 + 9i = 15 + 2i

Reorder the terms:
9 + 6 + -7i + 9i = 15 + 2i

Combine like terms: 9 + 6 = 15
15 + -7i + 9i = 15 + 2i

Combine like terms: -7i + 9i = 2i
15 + 2i = 15 + 2i

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

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

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

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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