Answer:
I think we have to use commas in lists because if we didn't it would be all together and it would be more hard to read.
Step-by-step explanation:
I hope this helps
Answer:
y=2x+3
Step-by-step explanation:
The value of "x" is 5.

Given that,
A trapezium ABCD in which AB || CD such that
Now,











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.