Please answer with complete calculations/solution

Two small spheres with mass 25.0 g are hung by silk threads of length 0.5 m. When the spheres are given equal quantities of negative charge, so that q1 = q2 = q each thread hangs at 150 from the vertical as shown in the figure below. Calculate the charge and the tension in the silk thread. Draw the free body diagram showing the forces. ..... X =8.0 cm