A charge of q1 = −3.3 nC is located at (x1, y1) = (4.7 m, −9.8 m). A charge of q2 = 7.9 nC is located at (x2, y2) = (−1 m, −4.3 m). In newtons per coulomb, what is the x-component the electric field at the origin due to q1 and q2? Use k = 8.99×109 N⋅m2 C.