[" Solve the following equations by the method of reduction "],[x+3y+3z=12],[x+4y+4z=15],[x+3y+4z=13]

Solve the following equations by the method of reduction 2x-y+z=1, x+2y+3x=8, 3x+y-4z=1.

Solve the following equations by inverse method : x + 3y + 3z = 12, x + 4y + 4z = 15, x + 3y + 4z = 13

Exaniming consistency and solvability, solve the following equations by matrix method. x + 2y + 3z =14 , 2x -y + 5z = 15 , 2y + 4z-3x = 13