Thank you, that was it. Not really, I just wanted to find parameters such, that they would meet all equations/inequations, and for some reason I thought I had to put one of them as the 'objective', but I just had to put a vector with the coefficients als entries there and move the constraint with the rest.

Thank you, that was it. Not really, I just wanted to find parameters such, that they would meet all equations/inequations, and for some reason I thought I had to put one of them as the 'objective', but I just had to put a vector with the coefficients als entries there and move the constraint with the rest.