Question

A system of linear equations could have an infinite number of solutions?

Answer 1

YES!

Example:


`\left\{\begin{array}{ccc}x+y=2\\x+y=2\end{array}\right`

Solutions:
x = 1; y = 1
x = 2; y = 0
x = 3; y = -1
x = 4; y = -2
x = 0.5; y = 1.5
....