Chapter 4.3, Problem 9CYU

To determine

To calculate:To solve the equation, then check your solution and graph it on number line

Answer to Problem 9CYU

On solving equation, $a=3.5$

Explanation of Solution

Given information:Equation is $a+5.7=9.2$

Calculation:

Equation is given as

$a+5.7=9.2$

On solving above equation,

> $\begin{array}{l}a=9.2-5.7\\ a=3.5\end{array}$

In order to check the solution, substitute $a=3.5$ in the given equation

$\begin{array}{l}LHS:3.5+5.7\\ LHS:9.2\end{array}$

Now, LHS = RHS

Hence, $a=3.5$ is solution of the equation $a+5.7=9.2$

Graphing $a=3.5$ on number line,

Let y-axis is represented as a-axis