Problem $24\mathrm{.}10$

A long wire carrying a $5\mathrm{.}5$ A current perpendicular to the xy$-$plane intersects the

x$-$axis at $=2\mathrm{.}0$ cm$.$ A second, parallel wire carrying a $3\mathrm{.}0$ A current intersects

the x$-$axis at $=+2\mathrm{.}0$ cm$.$

At what point on the x$-$axis is the magnetic field zero if the two currents are in the

same direction?