# How do you evaluate 18- [ 12\div ( 15\div ( 8- 7- 4) ) + 6\}?

Feb 2, 2017

$14.4$

#### Explanation:

Remember: PEMDAS

Start with $\left(8 - 7 - 4\right) = - 3$

The expression would look like: $18 -$[12 divide (15 divide -3) + 6]

2nd: $15$ divided by $- 3$ is $\frac{15}{-} 3 = - 5$

The expression would look like: $18 -$[12 divide -5 + 6]

3rd: $12$ divided by $- 5$ is $\frac{12}{-} 5 = - 2.4$

4th: $- 2.4 + 6 = 3.6$

The expression would look like: $18 - 3.6$

5th: $18 - 3.6 = 14.4$