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
[tex]\text{x = }\frac{10}{7}[/tex]
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
[tex]\begin{gathered} 15\text{ = 7}\frac{10}{7}\text{ + 5} \\ 15\text{ = }\frac{70}{7}+\text{ 5} \\ 15\text{ = 10 + 5} \\ 15\text{ = 15} \end{gathered}[/tex]
Since after the check, the Right Hand Side equals the Left Hand Side, the solution x = 10/7 is correct
