Solve the following systems of equations:
x-2y=0, 3x+4y=20.

Solve the following systems of equations: 2x-y=4, 4x-2y=6.

Solve the following systems of equations: x+y=2, 2x+2y=4.

Solve the following system of homogenous equations x+y+z=0,x+2y-z=0,2x+y+3z=0 .

Solve the following- system of equations, 2x + 5y + 6z = 0, x - 3y + 8z = 0, 3x + y - 4z = 0

Solve the following systems of homogeneous equations. 3x+y-2z=0 x+y+z=0 x-2y+z=0

Solve the following systems of homogeneous equations. x+y-2z=0 2x+y-3z=0 5x+4y-9z=0

Solve the following systems of homogeneous equations. 2x+3y-z=0 x-y-2z=0 3x+y+3z=0

Examine the consistency of the following systems of equations x+y+z=3,2x+2y-z=3,x+y+z=1 are consistent and if consistent solve it completely.