-(3+I)(7-3i)=

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


Simplifying
-1(3 + I)(7 + -3i) = 0

Multiply (3 + I) * (7 + -3i)
-1(3(7 + -3i) + I(7 + -3i)) = 0
-1((7 * 3 + -3i * 3) + I(7 + -3i)) = 0
-1((21 + -9i) + I(7 + -3i)) = 0
-1(21 + -9i + (7 * I + -3i * I)) = 0
-1(21 + -9i + (7I + -3iI)) = 0

Reorder the terms:
-1(21 + 7I + -9i + -3iI) = 0
-1(21 + 7I + -9i + -3iI) = 0
(21 * -1 + 7I * -1 + -9i * -1 + -3iI * -1) = 0
(-21 + -7I + 9i + 3iI) = 0

Solving
-21 + -7I + 9i + 3iI = 0

Solving for variable 'I'.

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

Add '21' to each side of the equation.
-21 + -7I + 9i + 21 + 3iI = 0 + 21

Reorder the terms:
-21 + 21 + -7I + 9i + 3iI = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -7I + 9i + 3iI = 0 + 21
-7I + 9i + 3iI = 0 + 21

Combine like terms: 0 + 21 = 21
-7I + 9i + 3iI = 21

Add '-9i' to each side of the equation.
-7I + 9i + -9i + 3iI = 21 + -9i

Combine like terms: 9i + -9i = 0
-7I + 0 + 3iI = 21 + -9i
-7I + 3iI = 21 + -9i

Reorder the terms:
-21 + -7I + 9i + 3iI = 21 + -9i + -21 + 9i

Reorder the terms:
-21 + -7I + 9i + 3iI = 21 + -21 + -9i + 9i

Combine like terms: 21 + -21 = 0
-21 + -7I + 9i + 3iI = 0 + -9i + 9i
-21 + -7I + 9i + 3iI = -9i + 9i

Combine like terms: -9i + 9i = 0
-21 + -7I + 9i + 3iI = 0

The solution to this equation could not be determined.

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