(-1-4i)-(-8+7i)=

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Solution for (-1-4i)-(-8+7i)= equation:


Simplifying
(-1 + -4i) + -1(-8 + 7i) = 0

Remove parenthesis around (-1 + -4i)
-1 + -4i + -1(-8 + 7i) = 0
-1 + -4i + (-8 * -1 + 7i * -1) = 0
-1 + -4i + (8 + -7i) = 0

Reorder the terms:
-1 + 8 + -4i + -7i = 0

Combine like terms: -1 + 8 = 7
7 + -4i + -7i = 0

Combine like terms: -4i + -7i = -11i
7 + -11i = 0

Solving
7 + -11i = 0

Solving for variable 'i'.

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

Add '-7' to each side of the equation.
7 + -7 + -11i = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -11i = 0 + -7
-11i = 0 + -7

Combine like terms: 0 + -7 = -7
-11i = -7

Divide each side by '-11'.
i = 0.6363636364

Simplifying
i = 0.6363636364

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