Question

Check whether system of simultaneous equations $2x+y=4$ and $y=2x$ have unique solution or not?

• A. Yes it has unique solution
• B. No, it does not have unique solution

Answer 1

The correct option is A Yes it has unique solution

On plotting the given simultaneous equations on cartesian plane, we get:

Clearly, both the lines are intersecting at a single point.
So, this system has only one solution or unique solution.