(3-i)-(7+2i)=

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Solution for (3-i)-(7+2i)= equation:


Simplifying
(3 + -1i) + -1(7 + 2i) = 0

Remove parenthesis around (3 + -1i)
3 + -1i + -1(7 + 2i) = 0
3 + -1i + (7 * -1 + 2i * -1) = 0
3 + -1i + (-7 + -2i) = 0

Reorder the terms:
3 + -7 + -1i + -2i = 0

Combine like terms: 3 + -7 = -4
-4 + -1i + -2i = 0

Combine like terms: -1i + -2i = -3i
-4 + -3i = 0

Solving
-4 + -3i = 0

Solving for variable 'i'.

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

Add '4' to each side of the equation.
-4 + 4 + -3i = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -3i = 0 + 4
-3i = 0 + 4

Combine like terms: 0 + 4 = 4
-3i = 4

Divide each side by '-3'.
i = -1.333333333

Simplifying
i = -1.333333333

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