Show work, need my 7PM

Question 1 refers to the diagram below. It shows two point charges, a +3 JC charge at x = 1 m and a -4 uC charge at x = 6 m. O 1 2 3 4 5 6 7 x (m) +3 JC -4 u.C 1. What is the resultant force (indicate the magnitude and direction) that would be exerted on a proton placed at x = 3 m by the two charges? (8 pts)