Calculador for linear sistems 3x2 and 2x3

I don't know how to calculate these equations and I haven't found anything about how to do it. Can you help me?
These calculations are for one button to calculate three unknowns and two equations, and another button for two unknowns and three equations.

Welcome Lucas.

You are attempting to solve simultaneous equations. You could use the Math blocks but you will probably need an extension. Math extensions. might be useful.

or you might be able to use a html or javascript solution in your App inventor app for linear equations or for quadradic equations.