Answer:
Step-by-step explanation:
a)
Smallest number of equations required are:
[tex]N=2(forR^2)[/tex]
Let equations are
[tex]2x+3y=13\\7x+y=17[/tex]
b)
Yes we can add one more equation
c)
We can add infinite such equations so that solution remains same.
d)
General form of such equations are called inconsistent equations