Question

Can you show the check too? so i can understand

Answer 1

Answer:

x = 10 / 7

Explanations:

The given equation is:

15 = 7x + 5

To get the value of x that will make the equation true, we are going to solve for x, that is, make x the subject of the equation

The first step is to collect like terms

The equation becomes:

15 - 5 = 7x

10 = 7x

This can also be written as:

7x = 10

Divide both sides by 7

7x / 7 = 10 / 7

x = 10 / 7

`\text{x = }(10)/(7)`

To check:

Insert the value of x, (i.e. 10/7) into the equation 15 = 7x + 5 and see if the Left Hand Side equals the Right Hand Side

`\begin{gathered} 15\text{ = 7}(10)/(7)\text{ + 5} \\ 15\text{ = }(70)/(7)+\text{ 5} \\ 15\text{ = 10 + 5} \\ 15\text{ = 15} \end{gathered}`

Since after the check, the Right Hand Side equals the Left Hand Side, the solution x = 10/7 is correct