How can i find unknown variable with solve command?

al=60; be=45; b=2;

(a-b)/(a+b))=tand(0.5*(al-be))/(tand(0.5*(al+be)))

Guys how can i find 'a' variable with solve command? its 0.3371 but i didnt find this result

Thank you

Answer 1

[Birdman]

According to your equation, the result is different:

>> syms a
al=60;be=45;b=2;
sol=solve((a-b)/(a+b)==tand(0.5*(al-be))/(tand(0.5*(al+be))),a);
vpa(sol)

ans =

2.4494897427831780468913375175721