Chapter 9.1, Problem 57CCR

To determine

To evaluate: The given expression.

Answer to Problem 57CCR

The value of $4a-b$ is $40$ .

Explanation of Solution

Given information:

The following expression:

  $4a-b$

The following values:

  $\begin{array}{l}a=12\\ b=8\end{array}$

Calculation:

The given expression is calculated as:

  $\begin{array}{l}4a-b[\text{Given]}\\ =4(12)-8[\text{Substitute values of }a\text{ and }b]\\ =48-8[\text{Multiply]}\\ =40[\text{Subtract]}\end{array}$