Pre-Algebra Examples

$- 8 - n = - 3 (2 n - 4)$

Step 1

Simplify $- 3 (2 n - 4)$ .

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Step 1.1

Apply the distributive property.

$- 8 - n = - 3 (2 n) - 3 \cdot - 4$

Step 1.2

Multiply.

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Step 1.2.1

Multiply $2$ by $- 3$ .

$- 8 - n = - 6 n - 3 \cdot - 4$

Step 1.2.2

Multiply $- 3$ by $- 4$ .

$- 8 - n = - 6 n + 12$

Step 2

Graph each side of the equation. The solution is the x-value of the point of intersection.

$n = 4$

Step 3