They are called simultaneous equations.
Chat with our AI personalities
It means that the equations are actually both the same one. When they're graphed, they both turn out to be the same line.
No....not necessary
Coincidental equations are really the same and are the same line. They have infinite solutions meaning that any solution for one will be a solution for the other.
Yes.
You would solve them in exactly the same way as you would solve linear equations with real coefficients. Whether you use substitution or elimination for pairs of equations, or matrix algebra for systems of equations depends on your requirements. But the methods remain the same.