x-y+2z =-1 2x + z = 0 x+5y + z = 5 O a·x=0, y = 1,2 = 0 â b, x = 1, y =1,2=1 O c. x = 0, y = 1,2=-1 O d, x 0, y = 0, z = 1 9
Show transcribed image textx-y+2z =-1 2x + z = 0 x+5y + z = 5 O a·x=0, y = 1,2 = 0 â b, x = 1, y =1,2=1 O c. x = 0, y = 1,2=-1 O d, x 0, y = 0, z = 1 9