Answer:
14+6=n=20
Step-by-step explanation:n=20
The first equation is 
(Equation 1)
The second equation is
(Equation 2)
Putting the value of x from equation 1 in equation 2.
we get,


by simplifying the given equation,


Using discriminant formula,


Now the formula for solution 'x' of quadratic equation is given by:


Hence, these are the required solutions.
I’m pretty sure A is true <3
Your answer is 2’3’3!! (2*3*3 = 18)
hopefully this helps, good luck bud! :)