(1-3i)-(7+i)=

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Solution for (1-3i)-(7+i)= equation:


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

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

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

Combine like terms: 1 + -7 = -6
-6 + -3i + -1i = 0

Combine like terms: -3i + -1i = -4i
-6 + -4i = 0

Solving
-6 + -4i = 0

Solving for variable 'i'.

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

Add '6' to each side of the equation.
-6 + 6 + -4i = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -4i = 0 + 6
-4i = 0 + 6

Combine like terms: 0 + 6 = 6
-4i = 6

Divide each side by '-4'.
i = -1.5

Simplifying
i = -1.5

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