# How to simplify 3xx(5+7)?

Mar 21, 2017

36

#### Explanation:

The sum of 5 and 7 is 12.
$5 + 7 = 12$

Three times 12 is 36.
$3 \cdot 12 = 36$

Mar 21, 2017

The answer is $36$.

#### Explanation:

$3 \times \left(5 + 7\right)$

Carry out the addition in the parentheses first. (PEMDAS)

$3 \times 12$ $\leftarrow$ Multiply.

$36$ $\leftarrow$ Simplify.