Simplify (-12i)-(3+3i)

$(- 12 i) - (3 + 3 i)$

Step 1

Simplify each term.

Apply the distributive property.

$- 12 i - 1 \cdot 3 - (3 i)$

Multiply $- 1$ by $3$ .

$- 12 i - 3 - (3 i)$

Multiply $3$ by $- 1$ .

$- 12 i - 3 - 3 i$

$- 12 i - 3 - 3 i$

Step 2

Subtract $3 i$ from $- 12 i$ .

$- 3 - 15 i$

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