Pre-Algebra Examples

$(3 + i) + (- 12 - 9 i)$

Step 1

Simplify the expression.

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Step 1.1

Remove parentheses.

$3 + i - 12 - 9 i$

Step 1.2

Subtract $12$ from $3$ .

$- 9 + i - 9 i$

$- 9 + i - 9 i$

Step 2

Subtract $9 i$ from $i$ .

$- 9 - 8 i$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$