Chapter 1.1, Problem 24OE

To determine

To Evaluate: The expression $2\cdot \left(b+2\right)$ if $a=1$ , $b=2$ , and $c=3$

Answer to Problem 24OE

The value of the expression $2\cdot \left(b+2\right)$ is $2\cdot \left(b+2\right)=8$

Explanation of Solution

Given information:

The expression $2\cdot \left(b+2\right)$ and the values $a=1$ , $b=2$ , and $c=3$

Concept Used:

The value of an expression at the given values of the unknowns is calculated by substituting the given values of the unknowns into the expression and simplifying it.

Calculation:

Given the expression $2\cdot \left(b+2\right)$

Evaluating the expression $2\cdot \left(b+2\right)$ at $b=2$ , we have

  $\begin{array}{c}2\cdot \left(b+2\right)=2\cdot \left(2+2\right)\text{ Substituting }b=2\\ =2\cdot 4\text{ Solving bracket}\\ =8\text{ Multipling}\end{array}$

Therefore, $2\cdot \left(b+2\right)=8$

Conclusion:

The value of the expression $2\cdot \left(b+2\right)$ is $2\cdot \left(b+2\right)=8$