Electric Field strength between 3 charges and directions

1. The problem statement, all variables and given/known data
Three point charges lie along a straight line as shown in the figure below, where
q1 = 6.36 µC, q2 = 1.57 µC and q3 = −1.82 µC.
The separation distances are d1 = 3.00 cm and d2 = 2.00 cm.
Calculate the magnitude and direction of the net electric force on each of the charges.

2. Relevant equations

3. The attempt at a solution
I think I have to use vectors but I don’t know how…

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