Chapter 4, Problem 31SGR

To determine

To solve and check: the given equation

Answer to Problem 31SGR

The solution of the given equation is $x=20$ .

Explanation of Solution

Given:

  $\frac{x}{5}=4$

Calculation:

  $\frac{x}{5}=4$

Multiplying both side with 5,

  $\begin{array}{l}\frac{x}{5}\times 5=4\times 5\\ x=20\end{array}$

To check the solution, putting the value of x in the given equation,

  $\begin{array}{l}L.H.S=\frac{x}{5}\\ \text{ =}\frac{20}{5}\\ \text{ = 4}\\ \text{ = R}\text{.H}\text{.S}\end{array}$ Putting $x=2$

Conclusion:

Hence, the solution of the given equation is $x=20$ .