Trig: Trying to figure out Tanx + 3 = -4. Use a formula...?

[Spectre927]

Ive been trying to figure out Tanx + 3 = -4. Is it the tangent addition formula or do I need to convert to sin and cos. I cant use a calculator either. Thanks

 

[Loren]

Re: Trig

What is it you are trying to do? Are you trying to solve for x? Have you made a typo?