Solving equation with tan

I have an equation that needs to be solved numerically.

-125=-arctan(0.25*x)-0.2*x*180/pi

I know that the answer can be approximatedto 6, according to the exams "corrected answer"

I cant solve it with pen and paper so I wonder if there is anyway to solve this in MATLAB?

Answer 1

[Star Strider]

Here is how I would solve it:

fcn = @(x) 125-atand(0.25.*x)-0.2*x*180/pi;
est_x = fzero(fcn, 10)

producing:

est_x =
     5.9959

See the documentation for fzero for details.