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

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

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

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

Examine the consistency of the following systems of equations x+y+4z=6,3x+2y-2z=9,5x+y+2z=13 and if consistent find the complete solutions.

Solve the following system of equations by using Cramer,s ruel . 3x+4y+5z=18,2x-y+8z=13,5x-2y+7z=20

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