Chapter 1, Problem 42SGR

To determine

To find: the expression $\left(8-3\right)4$ .

Answer to Problem 42SGR

The value of expression is $20$ .

Explanation of Solution

Given:

The expression is $\left(8-3\right)4$ .

Calculation:

The expression is evaluated as follows:

Step1:

Use associative property as follows:

  $\begin{array}{l}\Rightarrow \left(8-3\right)4\\ \Rightarrow 4\left(8-3\right)\end{array}$

Step1:

Use distributiveproperty as follows:

  $\begin{array}{l}\Rightarrow 4\left(8-3\right)\\ \Rightarrow 4\cdot 8-3\cdot 4\end{array}$

Step3:

Use multiplication property as follows:

  $\begin{array}{l}\Rightarrow 4\cdot 8-3\cdot 4\\ \Rightarrow 32-12\\ \Rightarrow 20\end{array}$

Thus, the value of expression is $20$ .