Question

The system of equations x + y - 6 = 0 and x - y - 2 = 0 has a unique solution. Elaborate

Answer 1

Answer:

Add two equation then you get

2x-8=0 therefore 2x=8 so x=4

Now substitute with any equation then you get y=2

Now you can check with these values with equation then you always get equal value if it's not the process of finding solution is not correct