Do you know what those words mean? A system of equations is "dependent" if and only if there are an infinite number of solutions. It is "inconsistent" if and only if there is NO solution. And, of course, it is "independent" if the there is a unique solution. So try to solve the equations!
In both systems, you can solve the first equation for y in terms of x: x- y= 0 gives y= x and y= -2x is already solved for y. Replace y in the second equation with that and you can reduce it to "Ax= B". If A is not 0, you can divide by A to get x= B/A, the unique solution- "independent". If A= 0, but B is not 0, 0x= B is not possible- "inconsistent". If A= 0 and B= 0, 0x= 0 is true for all x- "dependent".
