# Question #4b5af

Jan 30, 2018

$12 + 4 x$

#### Explanation:

If you mean by 2x3 -> $2 \cdot 3$
$\left(2 \cdot 3 + 10 x - 3\right) - \frac{1}{2} \left(12 x - 6 \cdot 3\right)$
First, we calculate the products, then we add and we simplify the second bracket.
$\left(2 \cdot 3 + 10 x - 3\right) - \frac{1}{2} \left(12 x - 6 \cdot 3\right)$
$= 6 + 10 x - 3 - \frac{1}{2} \left(12 x - 18\right)$
$= 3 + 10 x - \frac{1}{2} \cdot 12 x - \frac{1}{2} \cdot \left(- 18\right)$
$= 3 + 10 x - 6 x + 9$
$= 12 + 4 x$