How to create a dynamic layout of equations system on android

Question

I’m creating an application for Android that solves systems of linear equations in which the user defines the number of equations, and generates a system of Equations, where the user needs to define only the constants, as this example:
1:

2: or 3: And implement a button that retrieves what was typed.

I tried to use the Library implementation 'com.github.frhnfrq:MathView:1.1' https://github.com/frhnfrq/MathView and the Tablelayout

Android

public class MainActivity extends AppCompatActivity {

private EditText ordemt;
private int ordem;
private TableLayout tabela;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ordemt = findViewById(R.id.ordemid);
    tabela = findViewById(R.id.tabelaid);


}


public void Gerar(View view) {

    ordem = Integer.parseInt(ordemt.getText().toString());
    tabela.removeAllViews();


    for (int i = 0; i < ordem; i++) {

        TableRow tr = new TableRow(this);

        int contador = 1;
        for (int j = 0; j < ordem; j++) {

            if (j % 2 == 0) {
                EditText et = new EditText(this);
                tr.addView(et);

            } else {
                MathView mv = new MathView(getApplicationContext());

                mv.setText("$ x_" + contador + " + $");
                mv.setTextSize(20);
              mv.setPixelScaleType(MathView.Scale.SCALE_DP);
                tr.addView(mv);
                contador++;
            }

        }

        tabela.addView(tr);
    }


}

public void Recuperar(View view) {

}
//Como pegar valores dos EditText gerados dinamicamente no código java 

}

So doubtful how I get Edittext values created Dynamically, how to put edges and improve layout https://imgur.com/i8VAnxr where it got too far apart //

    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
              LinearLayout.LayoutParams.WRAP_CONTENT,
            LinearLayout.LayoutParams.WRAP_CONTENT
    );
     mv.setLayoutParams(params); 

This code snippet didn’t work in Mathview Object