Could you verify if my work is correct on the following problem. Please provide any corrections. thanks.

For the following exercises, determine whether the ordered triple given is the solution to the system of equations. 10. 2x- 3y + 4z =3, - x+ 5y + 2z =10, 3x -4y -z =-9 and (-1, 1, 2) 2x - 3y+ 4z=3 - x+ 5y+ 2z=10 3x - 4y- z= -9 2(-1) -3( 1) +4(2) =3 -(-1) +5(1) +2(2) =10 3(-1) -4(1) - (2) =-9 True True True The ordered triple (-1,1,2) is a solution to the given equations