(-6+6i)-(3-9i)=(-6-3)+[6-(-9)]i

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Solution for (-6+6i)-(3-9i)=(-6-3)+[6-(-9)]i equation:


Simplifying
(-6 + 6i) + -1(3 + -9i) = (-6 + -3) + [6 + -1(-9)] * i

Remove parenthesis around (-6 + 6i)
-6 + 6i + -1(3 + -9i) = (-6 + -3) + [6 + -1(-9)] * i
-6 + 6i + (3 * -1 + -9i * -1) = (-6 + -3) + [6 + -1(-9)] * i
-6 + 6i + (-3 + 9i) = (-6 + -3) + [6 + -1(-9)] * i

Reorder the terms:
-6 + -3 + 6i + 9i = (-6 + -3) + [6 + -1(-9)] * i

Combine like terms: -6 + -3 = -9
-9 + 6i + 9i = (-6 + -3) + [6 + -1(-9)] * i

Combine like terms: 6i + 9i = 15i
-9 + 15i = (-6 + -3) + [6 + -1(-9)] * i

Combine like terms: -6 + -3 = -9
-9 + 15i = (-9) + [6 + -1(-9)] * i
-9 + 15i = -9 + [6 + -1(-9)] * i

Multiply -1 * -9
-9 + 15i = -9 + [6 + 9] * i

Combine like terms: 6 + 9 = 15
-9 + 15i = -9 + [15] * i

Add '9' to each side of the equation.
-9 + 9 + 15i = -9 + 9 + 15i

Combine like terms: -9 + 9 = 0
0 + 15i = -9 + 9 + 15i
15i = -9 + 9 + 15i

Combine like terms: -9 + 9 = 0
15i = 0 + 15i
15i = 15i

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

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

Combine like terms: 15i + -15i = 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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