(-10-7i)-(5-3i)=

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Solution for (-10-7i)-(5-3i)= equation:


Simplifying
(-10 + -7i) + -1(5 + -3i) = 0

Remove parenthesis around (-10 + -7i)
-10 + -7i + -1(5 + -3i) = 0
-10 + -7i + (5 * -1 + -3i * -1) = 0
-10 + -7i + (-5 + 3i) = 0

Reorder the terms:
-10 + -5 + -7i + 3i = 0

Combine like terms: -10 + -5 = -15
-15 + -7i + 3i = 0

Combine like terms: -7i + 3i = -4i
-15 + -4i = 0

Solving
-15 + -4i = 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 + -4i = 0 + 15

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

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

Divide each side by '-4'.
i = -3.75

Simplifying
i = -3.75

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