Consider the following system of equations:
The number of solutions for this system is ______________
sorry for my handwriting!
In the pic R4 = R4 - R2 ..... And To be unique solution R(A|B) = R(A) = n where n is # of variables ...
@Ayush Upadhyaya Is it fruitful or can I use it for general method as satbir said in his comment. Can it harm solution for any example??