Answer :
The value of a in the equation is 6
Here, we want to get the value of a given the equation
To get the value of a, we simply try to isolate it on the left hand side of the equation by dividing both sides of the equation by its coefficient
The coefficient is 14 and thus, we divide both sides by 14
We have this as follows;
[tex]\begin{gathered} \frac{14a}{14}\text{ = }\frac{84}{14} \\ \\ a\text{ = 6} \end{gathered}[/tex]