# How do you simplify 30-[9+4(8-5]) using order of operations?

Jul 30, 2016

can't

#### Explanation:

you've ended the square brackets before the curved ones.

Jul 31, 2016

=$9$

#### Explanation:

There is obviously a small typing error in the question....

Let's assume it is supposed to read:

$\textcolor{b l u e}{30} \textcolor{m a \ge n t a}{- \left[9 + 4 \left(8 - 5\right)\right]} \text{ there are two terms}$

Work from the inside bracket .

=$\textcolor{b l u e}{30} \textcolor{m a \ge n t a}{- \left[9 + 4 \left(3\right)\right]}$

=color(blue)(30)color(magenta)(-[9+12]

=$\textcolor{b l u e}{30} \textcolor{m a \ge n t a}{- \left[21\right]}$

=$9$