Hi Valery. Good to read you. Viacheslav's solve block returns things unevaluated, you can force it evaluation with FindRoot(dummy:equas,vars) for example.
Thanks Valery for becoming Smath Community member. From the old good days Mathsoft Collaboratory. 'roots' is a plugin essentially based on differentiable system. Alternately, 'solve' may be convenient ~ 5 decimals. Your system is above my gray hairs. Cheers ... Jean.