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Simplify

$(3 + 7 i) - (- 4 + i)$

Step 1

Simplify each term.

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Step 1.1

Apply the distributive property.

$3 + 7 i - - 4 - i$

Step 1.2

Multiply $- 1$ by $- 4$ .

$3 + 7 i + 4 - i$

Step 2

Simplify by adding terms.

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Step 2.1

Add $3$ and $4$ .

$7 + 7 i - i$

Step 2.2

Subtract $i$ from $7 i$ .

$7 + 6 i$

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