How do you simplify 8 + 7 [24 - (12 + 2)] using PEMDAS?

Apr 8, 2016

87

Explanation:

$8 + 7 \left[24 - \textcolor{red}{\left(12 + 2\right)}\right]$

$8 + 7 \left[24 - 14\right]$

Next, work out the outer or the square bracket:

$8 + 7 \textcolor{red}{\left[24 - 14\right]}$

$8 + 7 \left[10\right] \implies 8 + 7 \times 10$

8+color(red)(7xx10
$= \textcolor{red}{8 + 70}$
$= 87$