Chapter 10.4, Problem 20CCR

To determine

To calculate: the value of expression for a value of variable.

Answer to Problem 20CCR

Value of expression $-\frac{1}{4}\left(x+11\right)$ at $x=-7$ is $\underset{\_}{-1}$ .

Explanation of Solution

Given information:

1. Expression whose value needs to be determine is $-\frac{1}{4}\left(x+11\right)$ .
2. Value of variable at which value of expression needs to be calculated is $x=-7$ .

Calculation:

Expression is as follows

  $-\frac{1}{4}\left(x+11\right)$

Substitute $x=-7$ in given expression.

  $-\frac{1}{4}\left(x+11\right)=-\frac{1}{4}\left(-7+11\right)$

  $=-\frac{1}{4}\left(4\right)$

  $=-1$

Hence value of expression $-\frac{1}{4}\left(x+11\right)$ at $x=-7$ is $\underset{\_}{-1}$ .