Chapter 4.3, Problem 17PPS

To determine

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

Answer to Problem 17PPS

On solving equation, $m=39$

Explanation of Solution

Given information:Equation is $m+21=60$

Calculation:

Equation is given as

$m+21=60$

On solving above equation,

> $\begin{array}{l}m=60-21\\ m=39\end{array}$

In order to check the solution, substitute $m=39$ in the given equation

$\begin{array}{l}LHS:32-12\\ LHS:20\end{array}$

Now, LHS = RHS

Hence, $m=39$ is solution of the equation $m+21=60$

Graphing $m=39$ on number line,

Let y-axis is represented as m-axis