4i+7i-(i-9)+2=

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Solution for 4i+7i-(i-9)+2= equation:


Simplifying
4i + 7i + -1(i + -9) + 2 = 0

Reorder the terms:
4i + 7i + -1(-9 + i) + 2 = 0
4i + 7i + (-9 * -1 + i * -1) + 2 = 0
4i + 7i + (9 + -1i) + 2 = 0

Reorder the terms:
9 + 2 + 4i + 7i + -1i = 0

Combine like terms: 9 + 2 = 11
11 + 4i + 7i + -1i = 0

Combine like terms: 4i + 7i = 11i
11 + 11i + -1i = 0

Combine like terms: 11i + -1i = 10i
11 + 10i = 0

Solving
11 + 10i = 0

Solving for variable 'i'.

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

Add '-11' to each side of the equation.
11 + -11 + 10i = 0 + -11

Combine like terms: 11 + -11 = 0
0 + 10i = 0 + -11
10i = 0 + -11

Combine like terms: 0 + -11 = -11
10i = -11

Divide each side by '10'.
i = -1.1

Simplifying
i = -1.1

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