Find the angle $x$

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I have been trying this, but got no an answer. Any ideas please.

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By law of sines I got $$x=180^{\circ}-70^{\circ}-35^{\circ}-\arctan\frac{\sin115^{\circ}\sin25^{\circ}\sin35^{\circ}}{\sin30^{\circ}\sin75^{\circ}+\sin25^{\circ}\sin35^{\circ}\cos115^{\circ}}=45^{\circ}$$ Now you can find a nice solution.