A. syms x y z [x y z]=solve(x+y+z=10, 3*x+2*y+z=14, 2x+3*y-z=1)

B. syms x y z [x y z]=solve(x+y+z=10, 3*x+2*y+z=14, 2*x+3*y-z=1)

C. syms x y z [x y z]=solve(x+y+z==10, 3*x+2*y+z==14, 2*x+3*y-z==1)

D. syms x y z [x y z]=solve(x+y+z==10, 3*x+2*y+z==14, 2x+3y-z==1)