Translation of "Solves" in Spanish

Blockchain solves this at little to no cost,

La blockchain lo soluciona a coste ínfimo y a coste cero,

Yesmi solves the problem of a fellow human being

Yesmi soluciona el problema de otro ser humano

And why it solves this problem they've had forever,

y por qué soluciona esto problema que han tenido para siempre,