Please solve them step by step with clean handwriting, I have trouble reading variables.Thank you.

5 What is the distance between the point (4, -8, 1 ) and the plane 5x -z = 2y + 5? 6 Explain why the following system has no solution. 5x - 3y - z = 6. 2x + y - 72 = -10 7 Using elementary operations, write each of the Solve the following system of equations using matrices: following matrices in reduced row-echelon form: 2x + y + 2z = 2 0 2 3 0 4 x+y+z=2 b. 0 2 d. 1 2 x+z=0