Respuesta :

Solutions 

[tex]4ab=5x-6ab-4x [/tex] 

[tex]4ab=x-6ab[/tex] 

[tex]4ab+6ab=x[/tex] 

[tex]10ab=x[/tex]
4x + 4ab = 5x - 6ab    Subtract 4ab from both sides
          4x = 5x - 10ab   Subtract 5x from both sides
         -1x =  -10ab         Divide both sides by -1
            x = 10ab