Need the step by step explanations thank you

1. Three point charges are located along the x axis: q1 = + 6.0 / C at x1 = +4.0 cm, q2 = + 8.0 u C at x2 =-5.0 cm, and q3 = -3.0 M C at x2 = + 1.0 cm. The mass of the -3.0 uC charge is 4.0 x 10-9 kg. Determine the magnitude and direction of the acceleration of the -3.0 uC charge when it is allowed to move if the other two charges remain fixed. Show all step-by-step work (drawing, reasoning, solution with explanation)